Inside the investing kitchen, part 3

Order up! See how we handle thousands of trades each day to keep customers’ portfolios humming.

When a chef plates a meal, they typically send it off, never to be seen again.

But serving up an investing portfolio is an ongoing affair. Deposits come in. Withdrawals go out. Asset classes grow and shrink as the market moves. Rebalancing takes place on the regular.

All of this requires daily trading. And this buying and selling of securities is among the most intricate and highly-regulated pieces of our operations.

So while the first two parts of this series cover the recipes and ingredients behind our investing, our final course focuses on the team–and tech–behind every transaction.

What happens when you hit "deposit"

Cara Daly is an adventurer at heart. An avid surfer and the daughter of a flight attendant, she racks up air miles chasing waves and visiting family in Ireland.

So naturally, she's gravitated toward one of the more thrill-seeking roles on our Investing team: Capital Markets. From the minute markets open each day, Cara and team monitor the action, making sure our customers' orders go smoothly.

These trades can amount to hundreds of millions of dollars in a single day, and the system that executes them all is in many ways our secret sauce. It's custom-built (a rarity in the industry) and plays the role of Mission Control.

An illustration of a deposit button.

When a customer clicks "deposit," for example, that single click gets translated into a series of purchases. These in turn get bundled up with other purchases of a like-kind and turned into orders, which are then executed at calibrated intervals as a part of our managed trading strategy.

This sort of intentional trading is incredibly important because of the scale of our operations. We manage more than $56 billion of assets, making us the largest independent robo-advisor out there. We may not "make" markets, but our trading volume is big enough to potentially influence them. So we need to be mindful of how and when our trades get executed.

“Say the market trades $10 million of a hypothetical security on any given day,” Cara says. “If our customers happen to want $20 million of it, meeting all that demand without minding the bigger context could drive up the price.”

An illustration of a conveyor belt with hypothetical asset classes being served.

To navigate these executional challenges, we deploy multiple strategies as needed (see below for a few examples), evaluating and calibrating each on a continuous basis. Taken altogether, they help ensure our customers' purchases and sales get treated fairly in the market.

  • Waiting out the first half hour after markets open before starting our trading. This helps sidestep some of the volatility that's common early in the day.
  • Trading periodically throughout the day, and randomizing when customers’ orders are processed. It's possible that prices can loosely correlate with certain times of the day, so we don't want that to consistently affect any one customer.
  • Briefly holding back on “system-generated” trading (proactive rebalancing, for example) for any particular fund if its trading reaches a certain threshold relative to its average daily volume. This helps make sure “user-directed” trading (when customers make deposits or withdrawals, to name a few examples) can continue regardless.
  • Partnering with industry experts like Apex to route and execute orders across multiple firms, helping us stay at the forefront of the evolving market landscape. This access to different execution venues also helps seek out the most favorable terms for customers—whether that’s price, speed, or overall execution quality.

Switching gears from execution to tax optimization, we also use both primary and secondary funds for most of our asset classes. These backup “tickers” come into play during times of heightened volatility in markets. Moments that can make or break an investing strategy.

Acing the stress test of market volatility

More often than not, it's business as usual on our Capital Markets team, and that's by design.

But during stretches of extreme volatility, when trading volume really picks up and prices can swing wildly from hour to hour, it's all hands on deck. Cara and company monitor our trading system for signs that additional oversight may be needed. They ease emerging bottlenecks in real time and keep things running smoothly, at times enlisting the support of our Trading Engineering team.

A photograph of two Betterment employees at a desk.Cara Daly (left) helps make sure customers’ daily trading goes smoothly.

Take April of 2025 for example. Early in the month, the Trump administration caught investors off guard by announcing a series of tariffs way higher and way earlier than expected. The announcement, and the inconsistent messaging that followed, set off a wild, weeks-long stretch of trading. Prices of some securities cratered in the morning only to recover by day's end.

Our systems not only weathered this storm, but capitalized on it, taking advantage of small windows of time to harvest tens of millions of dollars in temporary losses for customers before prices recovered. This strategy of tax loss harvesting helps sprinkle tax advantages on a portion of customers' taxable investing, and it wouldn’t be possible without the help of those aforementioned secondary tickers. These funds help avoid “wash sales” while maintaining customers’ desired exposures and risk levels.

An infographic about Betterment's tax loss harvesting in the spring of 2025.

Something delicious is simmering

The image of a golden harvest is an apt one, considering this series looks at our Investing team's work through a culinary lens. Many of our customers come to us not necessarily for a single serving of returns, but to plant the seeds for self-sustaining, long-term wealth. A harvest that supports a more-fulfilling life.

Cara and the rest of our Capital Markets experts are a big part of that lifecycle, tending to thousands of daily trades that optimize our customers’ portfolios over and over again. That's the beauty of using technology as a tool to expand our own capabilities and deliver results at scale. It's a people-led process.

We became a trusted leader in automated money management not because of our tech, but because of the people who build and use it each day. Specialists like Cara, Josh, and Jamie—They're our secret ingredient, working in service of customers hungry for a better way to invest.

Bon appétit.

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