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Why I’m Not Pouring My Savings Into Facebook Stock

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Why I’m Not Pouring My Savings Into Facebook Stock




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Why I'm Not Pouring My Savings Into Facebook Stock

Facebook (NASDAQ: FB) has generated a lot of buzz over the past few weeks after its first-quarter earnings report shattered expectations. The stock’s share price spiked in April after the report was released, leaving many investors to wonder whether they should make room for it in their portfolios.

While it could be a great decision for some, you need to be careful about investing too much in any single stock, even one with as much growth potential as Facebook. In this article, we’ll look at why, as well as some safer ways to add Facebook — or any other company stock you’re interested in — to your portfolio.

Image source: Getty Images.

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There’s no such thing as a risk-free investment

It’s easy to look at an industry giant like Facebook that sees billions of people visiting its sites every month and think it’s a foolproof investment. A company like that isn’t likely to go under anytime soon, after all. But a company doesn’t have to go out of business to lose you money. Stock prices change minute to minute, and sometimes that means you lose money in the short term.

If you’d invested $10,000 in Facebook on Feb. 19, 2020, it would have been worth only $7,827 less than a month later on March 11, 2020 as pandemic fears gripped the world.And if you’d panicked and sold it then, that loss would’ve been permanent. But if you’d held onto that investment for a year from the date you purchased it, your shares would be worth $12,575.

This kind of volatility makes investing in stocks risky, especially for those nearing retirement age. If you really need cash, you may have to sell at a loss just to cover your bills. And while Facebook may not be in danger of going out of business, some companies do, and when that happens, you could lose all the funds you invested in them for good.

That’s why it’s so important to diversify by investing in many companies and sectors. When you have your money invested in a dozen or more companies, the ups and downs of a single stock don’t have as large of an effect on your portfolio. With a solid base of strong companies, your savings will grow over time with fewer volatile swings than you’d have if you put all your money in one or two stocks.

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You also should invest in several sectors to hedge against problems that affect entire industries. For example, the COVID-19 pandemic hit tourism hard, so if you had all your savings in consumer discretionary stocks such as restaurants and travel companies, you would’ve lost a lot even if you had your money invested in several companies. But if you also had some money in tech stocks, the big boom they saw amid the pandemic would have made up for some of the hits your other stocks took.

A safer way to invest in Facebook

If you want to invest in Facebook stock but are worried about not being diversified enough, there are two avenues you should consider: index funds and fractional shares. Index funds are bundles of stocks that track a market index. They’re made up of all the same stocks as the index, so when the index does well, you do, too.

S&P 500 index funds are some of the most popular. These contain 500 of the largest companies in the U.S., including Facebook. When you invest in one of these, you’re essentially buying a small portion of Facebook and 499 other companies in various industries, so your money is well diversified with a single purchase. Index funds also have low fees, so you won’t have to worry about forfeiting a ton of your profits to some fund manager you’ve never met.

Fractional shares are just what they sound like — a fraction of a single share that you can buy the same way you’d purchase a full share. They enable you to invest in big, expensive companies even if you don’t have a ton of cash. If you decide to purchase fractional shares, you could put a small amount of money into Facebook and use your remaining funds to invest in fractional shares of other companies to ensure you’re properly diversified. However, not all brokers allow fractional share investing right now, so you’ll have to look for one that offers this if you’re interested in it.

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Both of these strategies are viable ways to invest in Facebook while keeping your money diversified, but that doesn’t mean you should never invest in a single stock on its own. If you already have a diversified portfolio and you think Facebook is a smart investment for you, investing some of your extra cash in Facebook stock could be a rewarding decision. But you have to remember you’re dealing with your savings, so you should always err on the side of caution.

10 stocks we like better than Facebook

When investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.*

David and Tom just revealed what they believe are the ten best stocks for investors to buy right now… and Facebook wasn’t one of them! That’s right — they think these 10 stocks are even better buys.

*Stock Advisor returns as of May 11, 2021

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Randi Zuckerberg, a former director of market development and spokeswoman for Facebook and sister to its CEO, Mark Zuckerberg, is a member of The Motley Fool’s board of directors. Kailey Hagen has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Facebook. The Motley Fool has a disclosure policy.

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Meet the Developers – Linux Kernel Team (David Vernet)

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Credit: Larry Ewing (lewing@isc.tamu.edu) and The GIMP for the original design of Tux the penguin.

Intro

For today’s interview, we have David Vernet, a core systems engineer on the Kernel team at Meta. He works on the BPF (Berkeley Packet Filter) and the Linux kernel scheduler. This series highlights Meta Software Engineers who contribute to the Linux kernel. The Meta Linux Kernel team works with the broader Linux community to add new features to the kernel and makes sure that the kernel works well in Meta production data centers. Engineers on the team work with peers in the industry to make the kernel better for Meta’s workloads and to make Linux better for everyone.

Tell us about yourself.

I’m a systems engineer who’s spent a good chunk of his career in the kernel space, and some time in the user-space as well working on a microkernel. Right now, I’m focusing most of my time on BPF and the Linux kernel scheduler.

I started my career as a web developer after getting a degree in math. After going to grad school, I realized that I was happiest when hacking on low-level systems and figuring out how computers work.

As a kernel developer at Meta, what does your typical day look like?

I’m not a maintainer of any subsystems in the kernel, so my typical day is filled with almost exclusively coding and engineering. That being said, participating in the upstream Linux kernel community is one of the coolest parts of being on the kernel team, so I still spend some time reading over upstream discussions. A typical day goes something like this:

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  1. Read over some of the discussions taking place on various upstream lists, such as BPF and mm. I usually spend about 30-60 minutes or so per day on this, though it depends on the day.

  2. Hack on the project that I’m working on. Lately, that’s adding a user-space ringbuffer map type to BPF.

  3. Work on drafting an article for lwn.net.

What have you been excited about or incredibly proud of lately?

I recently submitted a patch-set to enable a new map type in BPF. This allows user-space to publish messages to BPF programs in the kernel over the ringbuffer. This map type is exciting because it sets the stage to enable frameworks for user-space to drive logic in BPF programs in a performant way.

Is there something especially exciting about being a kernel developer at a company like Meta?

The Meta kernel team has a strong upstream-first culture. Bug fixes that we find in our Meta kernel, and features that we’d like to add, are almost always first submitted to the upstream kernel, and then they are backported to our internal kernel.

Do you have a favorite part of the kernel dev life cycle?

I enjoy architecting and designing APIs. Kernel code can never crash and needs to be able to run forever. I find it gratifying to architect systems in the kernel that make it easy to reason about correctness and robustness and provide intuitive APIs that make it easy for other parts of the kernel to use your code.

I also enjoy iterating with the upstream community. It’s great that your patches have a whole community of people looking at them to help you find bugs in your code and suggest improvements that you may never have considered on your own. A lot of people find this process to be cumbersome, but I find that it’s a small price to pay for what you get out of it.

Tell us a bit about the topic you presented at the Linux Plumbers Conference this year.

We presented the live patch feature in the Linux kernel, describing how we have utilized it at Meta and how our hyper-scale has shown some unique challenges with the feature.

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What are some of the misconceptions about kernel or open source software development that you have encountered in your career?

The biggest misconception is that it’s an exclusive, invite-only club to contribute to the Linux kernel. You certainly must understand operating systems to be an effective contributor and be ready to receive constructive criticism when there is scope for improvement in your code. Still, the community always welcomes people who come in with an open mind and want to contribute.

What resources are helpful in getting started in kernel development?

There is a lot of information out there that people have written on how to get integrated into the Linux kernel community. I wrote a blog post on how to get plugged into Linux kernel upstream mailing list discussions, and another on how to submit your first patch. There is also a video on writing and submitting your first Linux kernel patch from Greg Kroah-Hartman.

In terms of resources to learn about the kernel itself, there are many resources and books, such as:

Where can people find you and follow your work?

I have a blog where I talk about my experiences as a systems engineer: https://www.bytelab.codes/. I publish articles that range from topics that are totally newcomer friendly to more advanced topics that discuss kernel code in more detail. Feel free to check it out and let me know if there’s anything you’d like me to discuss.

To learn more about Meta Open Source, visit our open source site, subscribe to our YouTube channel, or follow us on Twitter, Facebook and LinkedIn.

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Get started with WhatsApp Business Platform in Minutes with Postman

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Our collaboration brings tools you already use to WhatsApp Business Platforms APIs

Postman is a best-in-class API platform used by 20M developers worldwide. Using Postman simplifies each step of the API lifecycle and streamlines collaboration.

Postman’s strong platform and broad adoption in the developer community made deciding to work with Postman to deliver a robust developer experience an easy decision for our WhatsApp Business Platform product team.

What Postman means for your WhatsApp projects

The benefits of this collaboration for developers are clear – you can easily leverage Postman’s platform with your Meta projects to onboard, collaborate, and contribute towards documentation and best practices as you build out your integrations.

Fast Onboarding

The WhatsApp team is able to offer, via Postman, an API collection that pre-fills environment variables and walks you through your initial test requests – helping developers dive right in to using the Cloud API. Our product managers show you how easy it is to get started with Postman in this session from Conversations:

Foster Collaboration

The public Postman workspace fosters collaboration – allowing environments, collections, and documentation augmentation to happen in one place.

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Enhance Documentation

Postman’s API documentation tools augment our own documentation and allows developers to contribute directly to the community’s shared knowledge, building a strong reference library for all developers and encouraging new, innovative use cases.

The Results

Working with Postman from the beginning helps create a developer-friendly experience for the WhatsApp Business Platform – allowing you to get started quickly, build community, and share knowledge.

Want to know more about our partnership with Postman? Check out their case study, follow along with the video above, or dive right into the Postman Workspace for the WhatsApp Business Platform.

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1. https://www.postman.com/state-of-api/

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Summer of open source: building more efficient AI with PyTorch

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Note: Special thanks to Less Wright, Partner Engineer, Meta AI, for review of and additional insights into the post.

This post on creating efficient artificial intelligence (AI) is the second in the “Summer of open source” series. This series aims to provide a handful of useful resources and learning content in areas where open source projects are creating impact across Meta and beyond. Follow along as we explore other areas where Meta Open Source is moving the industry forward by sharing innovative, scalable tools.

PyTorch: from foundational technology to foundation

Since its initial release in 2016, PyTorch has been widely used in the deep learning community, and its roots in research are now consistently expanding for use in production scenarios. In an exciting time for machine learning (ML) and artificial intelligence (AI), where novel methods and use cases for AI models continue to expand, PyTorch has reached the next chapter in its history as it moves to the newly established, independent PyTorch Foundation under the Linux Foundation umbrella. The foundation is made up of a diverse governing board including representatives from AMD, Amazon Web Services, Google Cloud, Microsoft Azure and Nvidia, and the board is intended to expand over time. The mission includes driving adoption of AI tooling through vendor-neutral projects and making open source tools, libraries and other components accessible to everyone. The move to the foundation will also enable PyTorch and its open source community to continue to accelerate the path from prototyping to production for AI and ML.

Streamlining AI processes with Meta open source

PyTorch is a great example of the power of open source. As one of the early open source deep learning frameworks, PyTorch has allowed people from across disciplines to experiment with deep learning and apply their work in wide-ranging fields. PyTorch supports everything from experiments in search applications to autonomous vehicle development to ground-penetrating radar, and these are only a few of its more recent applications. Pairing a versatile library of AI tools with the open source community unlocks the ability to quickly iterate on and adapt technology at scale for many different uses.

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As AI is being implemented more broadly, models are trending up in size to tackle more complex problems, but this also means that the resources needed to train these models have increased substantially. Fortunately, many folks in the developer community have recognized the need for models to use fewer resources—both from a practical and environmental standpoint. This post will explore why quantization and other types of model compression can be a catalyst for efficient AI.

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Establishing a baseline for using PyTorch

Most of this post explores some intermediate and advanced features of PyTorch. If you are a beginner that is looking to get started, or an expert that is currently using another library, it’s easiest to get started with some basics. Check out the beginner’s guide to PyTorch, which includes an introduction to a complete ML workflow using the Fashion MNIST dataset.

Here are some other resources that you might check out if you’re new to PyTorch:

  • PyTorch Community Stories: Learn how PyTorch is making an impact across different industries like agriculture, education, travel and others
  • PyTorch Beginner Series: Explore a video playlist of fundamental techniques including getting started with tensors, building models, training and inference in PyTorch.

Quantization: Applying time-tested techniques to AI

There are many pathways to making AI more efficient. Codesigning hardware and software to optimize for AI can be highly effective, but bespoke hardware-software solutions take considerable time and resources to develop. Creating faster and smaller architectures is another path to efficiency, but many of these architectures suffer from accuracy loss when compared to larger models, at least for the time being. A simpler approach is to find ways of reducing the resources that are needed to train and serve existing models. In PyTorch, one way to do that is through model compression using quantization.

Quantization is a mathematical technique that has been used to create lossy digital music files and convert analog signals to digital ones. By executing mathematical calculations with reduced precision, quantization allows for significantly higher performance on many hardware platforms. So why use quantization to make AI more efficient? Results show that in certain cases, using this relatively simple technique can result in dramatic speedups (2-4 times) for model inference.

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The parameters that make up a deep learning model are typically decimal numbers in floating point (FP) precision; each parameter requires either 16 bits or 32 bits of memory. When using quantization, numbers are often converted to INT4 or INT8, which occupy only 4 or 8 bits. This reduces how much memory models require. Additionally, chip manufacturers include special arithmetic that makes operations using integers faster than using decimals.

There are 3 methods of quantization that can be used for training models: dynamic, static and quantize-aware training (QAT). A brief overview of the benefits and weaknesses is described in the table below. To learn how to implement each of these in your AI workflows, read the Practical Quantization in PyTorch blog post.

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Quantization Method

Benefits

Weaknesses

Dynamic

  • Easy to use with only one API call
  • More robust to distribution drift resulting in slightly higher accuracy
  • Works well for long short-term memory (LSTM) and Transformer models

Additional overhead in every forward pass

Static (also known as PTQ)

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  • Faster inference than dynamic quantization by eliminating overhead

May need regular recalibration for distribution drift

Quantize-Aware Training (QAT)

  • Higher accuracy than static quantization
  • Faster inference than dynamic

High computational cost

Additional features for speeding up your AI workflow

Quantization isn’t the only way to make PyTorch-powered AI more efficient. Features are updated regularly, and below are a few other ways that PyTorch can improve AI workflows:

  • Inference mode: This mode can be used for writing PyTorch code if you’re only using the code for running inference. Inference mode changes some of the assumptions when working with tensors to speed up inference. By telling PyTorch that you won’t use tensors for certain applications later (in this case, autograd), it adjusts to make code run faster in these specific scenarios.

  • Low precision: Quantization works only at inference time, that is, after you have trained your model. For the training process itself, PyTorch uses AMP, or automatic mixed precision training, to find the best format based on which tensors are used (FP16, FP32 or BF16). Low-precision deep learning in PyTorch has several advantages. It can help lower the size of a model, reduce the memory that is required to train models and decrease the power that is needed to run models. To learn more, check out this tutorial for using AMP with CUDA-capable GPUs.

  • Channels last: When it comes to vision models, NHWC, otherwise known as channels-last, is a faster tensor memory format in PyTorch. Having data stored in the channels-last format accelerates operations in PyTorch. Formatting input tensors as channels-last reduces the overhead that is needed for conversion between different format types, resulting in faster inference.

  • Optimize for inference: This TorchScript prototype implements some generic optimizations that should speed up models in all environments, and it can also prepare models for inference with build-specific settings. Primary use cases include vision models on CPUs (and GPUs) at this point. Since this is a prototype, it’s possible that you may run into issues. Raise an issue that occurs on the PyTorch GitHub repository.

Unlocking new potential in PyTorch

Novel methods for accelerating AI workflows are regularly explored on the PyTorch blog. It’s a great place to keep up with techniques like the recent BetterTransformer, which increases speedup and throughput in Transformer models by up to 2 times for common execution scenarios. If you’re interested in learning how to implement specific features in PyTorch, the recipes page allows you to search by categories like model optimization, distributed training and interpretability. This post is only a sampling of how tools like PyTorch are moving open source and AI forward.

To stay up to date with the latest in Meta Open Source for artificial intelligence and machine learning, visit our open source site, subscribe to our YouTube channel, or follow us on Facebook, Twitter and LinkedIn.

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