Now There Are ETFs Making Money While You Sleep

Episode Summary

Executive Summary: The episode centers on NightShares, a new ETF product that tries to isolate the stock market’s historically stronger overnight returns versus daytime performance. Guests Bruce Levine and Max Goekman argue the “night effect” is durable, driven by after-hours news, institutional de-risking, and market structure, and that futures plus treasury collateral can make the strategy implementable despite trading costs.

Main Topics: The NightShares ETF concept (Priority: 5/5): The guests explain a new ETF idea that separates overnight and daytime equity returns, aiming to capture what they call the “night effect” in large-cap and small-cap markets. Why overnight returns may outperform (Priority: 5/5): Bruce Levine describes three drivers: news released after the close, institutional flattening/de-risking overnight, and the avoidance of certain daytime complexities. How the strategy is implemented (Priority: 5/5): Max Goekman outlines the mechanics: using futures to gain overnight exposure and holding treasury collateral to help offset transaction costs. Transaction costs and feasibility (Priority: 4/5): The hosts press on whether frequent trading erodes returns; the guests say execution, futures, and cash collateral make the strategy viable, though not risk-free. Backtests, performance, and skepticism (Priority: 4/5): The discussion compares night-only exposure against buy-and-hold, with the guests emphasizing risk-adjusted returns and acknowledging the effect does not work every period. Future expansion and product design (Priority: 3/5): The conversation shifts to whether the concept could be extended globally or to other calendar effects, though the guests say they remain focused on the nighttime slice first.

Key Arguments: Overnight equity returns have historically been stronger and less volatile than daytime returns, making the night session a distinct investable stream. The effect is not just a U.S. quirk; the guests say research suggests it appears globally. After-hours news such as earnings and M&A can benefit overnight holders, because those events occur when the cash market is closed. Institutions often reduce risk before the close and re-enter in the morning, which may create a persistent overnight pattern. Using futures at the close and the open allows the fund to replicate overnight exposure without holding stocks directly all day. Treasury collateral can generate income that helps offset trading/transaction costs. The strategy is presented as a risk-management and diversification tool, not simply a return-maximization tool. The guests acknowledge that if the effect becomes widely exploited, alpha could compress, but they believe structural reasons may make it more persistent than many anomalies.

Data Points: ETF launches per year: 270–280 - Eric Balchunas notes the ETF industry sees roughly this many launches annually. Notable launches that stand out: 5–6 per year - Balchunas says only a handful of launches typically catch his attention. Large-cap night-only returns since 1993: about 600% - Balchunas references a prior study/chart of the night session’s cumulative return. Large-cap daytime return since 1993: flat or down 11% - Balchunas contrasts daytime performance with the night session in the cited study. S&P 500 buy-and-hold return since 1993: up 1500% - Balchunas notes that holding the index continuously still outperformed night-only exposure in absolute terms. Small-cap index year-to-date return: down about 22% - Goekman says a small-cap index would be roughly down this amount if held outright. Small-cap night-only year-to-date return: down less than 6% - Goekman says night-only exposure substantially reduced losses versus full-day ownership. Trading cost estimate: 0.5 to 1 basis point per day - Goekman estimates the fund’s internal trading costs using futures. Annualized trading cost estimate: 125 to 250 basis points - Balchunas and Goekman annualize the daily cost estimate over roughly 250 trading days.

Pivotal Quotes: "the big idea is that there are some unusual differences between what happens in the markets overnight and during the daytime session" — Bruce Levine: Explaining the rationale behind NightShares and the separation of return streams. "we're buying futures at the close and selling them at the open" — Max Goekman: Describing the actual implementation of the overnight exposure strategy. "your money should work while you sleep" — Bruce Levine: Summarizing the product’s core pitch to investors.

Implications: If the night effect persists, it could create a new ETF category focused on time-of-day exposure and challenge traditional buy-and-hold assumptions. It also raises questions about scalability, arbitrage, and whether market structure anomalies can be packaged for retail investors.