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Symphonies
Jason's Overfit Nightmare
Today’s Change
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A symphony is an automated trading strategy — Learn more about symphonies here

About

Parks all money in BIL, an ETF of 1–3 month U.S. Treasury bills. Rebalanced daily to stay at 100% BIL. No stock exposure; aims for cash‑like stability while earning short‑term Treasury yields. SPYU appears in the template but is always 0%.
NutHow it works
Every trading day, the strategy sets the portfolio to 100% BIL (SPDR Bloomberg 1–3 Month T‑Bill ETF). BIL holds very short‑term U.S. Treasury bills, so it behaves like cash and earns the current T‑bill yield. SPYU is listed but fixed at 0%, so it’s never bought. Returns move with short‑term interest rates.
CheckmarkValue prop
Cash-like, ultra-stable strategy: 100% BIL, daily reset. Out-of-sample stats show minimal drawdowns, near-zero beta, and strong risk-adjusted performance versus the S&P. A reliable ballast that preserves capital while keeping liquidity.

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Invest in this strategy
OOS Start Date
Nov 9, 2025
Trading Setting
Daily
Type
Stocks
Category
Cash-equivalent, treasury bills, capital preservation, low volatility, static allocation, daily rebalance
Tickers in this symphonyThis symphony trades 2 assets in total
Ticker
Type
BIL
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
Stocks
SPYU
MAX S&P 500 4x Leveraged ETN
Stocks

FAQ

A Composer symphony is an automated trading strategy that executes trades based on parameters of your choice. Some symphonies are similar to holding one ETF in normal conditions and rotating to a different ETF when market conditions shift, for example a 5% drop in the S&P 500, while others use complex rules with dozens of triggers. However, complex doesn’t always mean better. A simple, well-structured symphony can be just as effective as an intricate one. Learn more about how symphonies work here.

"Jason's Overfit Nightmare" is currently performing the same as yesterday today. Performance updates in real time during market hours.

"Jason's Overfit Nightmare" is currently allocated toBIL. Holdings automatically adjust as market conditions change based on the strategy's rules.

Year-to-date, "Jason's Overfit Nightmare" has returned 3.62%. You can adjust the performance chart above to view returns across different time horizons.

The maximum drawdown for "Jason's Overfit Nightmare" is 0.02%. The maximum drawdown measures the largest peak-to-trough decline. It's an important metric to evaluate risk and the strategy's behavior during market stress.

To invest in "Jason's Overfit Nightmare", simply click the Invest button on this page. You'll need to open an account with Composer if you don't have one yet, then you can start investing. Composer will automatically execute the trades for you based on the strategy's rules. Composer also supports trading individual stocks, ETFs, and options.