The JPM Collar: Why One Options Trade Moved the Entire Market
Today the S&P 500 rallied 3% into the close. That rally was driven by one trade: JPMorgan's quarterly collar roll.
The trade
JPMorgan's Hedged Equity Fund (JHEQX) owns ~$18 billion of S&P 500 stocks. Every quarter, they hedge it with three options trades:
That is the collar: give up some upside, get downside protection, and the call sale pays for most of it.
How big is this? Each leg is ~35,000 SPX index contracts. At SPX 6,500, that is roughly $22.7 billion in notional value per leg. For context, that is larger than the entire daily volume of most individual stocks.
What happened this quarter
Why did the market rally 3%?
When JPMorgan buys that 6,475 put, a dealer (market maker like Citadel or a bank like Goldman Sachs) takes the other side. The dealer is now short a put on 35,000 contracts, which gives them negative gamma.
What does that mean? The dealer has to constantly buy and sell futures to stay hedged. And the direction they trade amplifies whatever the market is already doing:
How the delta hedge works
Drag the slider to see how much the dealer needs to hedge as SPX moves:
On roll day, the put expired and SPX closed above 6,475. Dealers who were short billions in futures to hedge that put suddenly did not need them. They bought back those futures all at once, and that wave of buying is what drove the 3% rally.
When exactly do dealers buy back? (detailed breakdown)
Dealers do not wait until the option literally expires at 4:00 PM. They unwind throughout the day in three phases:
1. Delta decay (morning/midday)
As the option approaches expiry, its delta decays rapidly. If SPX is above the 6,475 put strike at 2:00 PM, the put's delta is already near zero. The dealer starts buying back futures well before the close.
2. The roll trade (afternoon)
JPMorgan executes the new collar on roll day afternoon. Dealers close old hedges while putting on new ones. Because the old and new strikes are at different levels, there is a net directional flow.
3. BTIC settlement (final minutes)
BTIC stands for Basis Trade at Index Close. Here is the problem it solves:
Think of it like a group of people all agreeing to buy a house at whatever the auction price ends up being. They do not bid against each other, but the auction still sees massive demand, so the price rises. That is why roll days have a sharp move into the close: everyone's BTIC orders settle at the same moment.
The result: gradual unwinding during the day, then a sharp move in the final minutes as BTIC orders settle. Today's 3% rally was this playing out across billions of dollars of delta.
Understanding GEX: the bigger picture
The collar trade does not exist in a vacuum. It is part of a broader concept called gamma exposure (GEX), which measures the total hedging pressure dealers face across all options positions.
The JPM collar put was a massive chunk of negative GEX. Tap the zones below to see how different GEX levels affect the market:
Here is what the GEX landscape looked like going into expiry, broken down by strike price. Tap the labeled bars for details:
When that 6,475 position expired, the entire GEX profile shifted. The market went from deep negative to closer to neutral, unlocking the rally.
You can track GEX in real time at SpotGamma (equities) or Laevitas (crypto). See our full GEX reference page for how to read these charts and where to find data for any market.
What changed today
The old collar expired. The fund rolled into a new one for Q2:
| Leg | Q1 (expired) | Q2 (new) | Moved |
|---|---|---|---|
| Sell Call (upside cap) | 7,155 | 6,955 | 200 pts lower |
| Buy Put (protection) | 6,475 | 6,290 | 185 pts lower |
| Sell Put (floor) | ~5,310 | 5,310 | unchanged |
Why did the strikes move down? Because the collar resets around the current SPX level each quarter:
What comes next
What happened last time
In March 2025, the collar's put strike was at 5,565. SPX hovered near it into the roll on March 31. After the collar expired and its gamma support disappeared, "Liberation Day" tariffs were announced on April 2. Without the collar's mechanical support, SPX dropped 10% over April 3-4.
Key levels to watch
Sources and further reading
- Gamma Exposure (GEX) reference - how to read GEX, where to track it
- SpotGamma: JPM Collar Trade - real-time tracking
- MenthorQ: JPM Collar Explained - detailed breakdown
- Brent Kochuba on the Q1 collar - video analysis
- JHEQX Fund Page - JPMorgan official
- Gamma / Delta - the Greeks behind GEX
This analysis is educational. Not financial advice. Options trading involves risk of loss. Price data sourced from Polygon.io (SPY as SPX proxy).