Hermēs Documentation
Event-Day Playbook
On FOMC / CPI / NFP days — how option institutions plant decoy signals, how the volatility crash harvests followers, and the pre-market hedging schedule
Why event days get their own chapter
On normal days, the reversal / momentum signals from Order Flow and Extreme Gamma Sniping are reliable. But on major event days — FOMC (rate decision), CPI, NFP (payrolls) — the same signals will fool you.
The reason is simple: on event days, option institutions are "playing poker" with you. They deliberately plant decoy signals on the chart, using options to put body armor on their real futures positions. This chapter teaches you to read the poker game and switch to a completely different discipline.
Event-day rule #1
- 30 min before the event: no new positions
- At the moment of release: position = 0
- 30 min after the event: an "observation window" — let dealers re-hedge and Market State recalibrate
- Only then consider Gamma Flip reversals or trend setups
Trap 1 · "Buy calls" as cover for shorting futures
The most classic event-day decoy: you see institutions buy a large slug of calls at the day's highs, just before the decision.
Linear thinking: institutions spend big on calls at the highs → "they're betting on a spike after the print" → follow them long.
Result: the print drops the market, the followers get buried.
Their real core position is heavily short futures. Buying calls up high merely hedges that giant short:
- If the print spikes → calls cap the loss
- If the market drops as expected → the futures gain dwarfs the option cost
The calls are an "insurance policy," not a directional bet.
Recognition: a sudden large call / put order before an event is often not a directional bet but body armor for a real futures position. So on event days, do not linearly read "institutions buying calls = bullish."
Trap 2 · A positive-convexity surge = hedging, not reversal
On normal days, an upward spike in convexity order flow (positive convexity / Long Gamma) = a reversal signal (someone buying volatility to break the regime).
But on the eve of a major event, institutions protecting huge portfolios buy options en masse (buying protection), which leaves the same giant upward spike in convexity flow.
Key difference:
- Normal day: positive-convexity spike = someone wants to "change the regime" = reversal
- Event day: positive-convexity spike = everyone "panic-buying volatility for protection" ≠ directional signal
When you see an upward spike on an event day, don't trade it as a reversal. It only reflects hedging demand.
Trap 3 · The volatility crash
Institutions pushed option implied volatility (IV) up before the event. Once the FOMC decision lands and uncertainty vanishes, a "volatility crash" is inevitable:
The event lands, uncertainty disappears
Whatever direction the market actually goes, option IV quickly reverts toward realized volatility (RV).
The option premium bubble bursts
The previously expensive options (priced on high IV) lose value fast.
Followers get double-killed
Retail who bought expensive options before the event to bet direction may lose even if their direction was right — IV collapse eats the directional gain.
The futures trader's edge: you trade futures, not the options being crushed by IV. But you must understand this mechanic — it explains why "I was right on direction but the option lost money" after events, and why dealer hedge flow flips suddenly post-event.
The pre-market hedging schedule (microstructure)
Many assume the violent open is "retail buying and selling randomly." The truth is an institutional hedging schedule at work:
Midnight 12:00 ET · System settlement
Big institutions' quant systems start computing the prior day's residual option exposure.
3:00 AM ET · Hedging begins
Large portfolio managers and dealers already know exactly how many futures they must buy / sell at the 9:30 open to hedge, and start absorbing that residual hedge from here.
9:30 open · Volatility burst
The "seemingly irrational extreme volatility" at the open is not retail noise — it's dealers concentrating the pre-market hedging tasks.
Implication: the 9:30–10:00 "hedge-absorption window" has huge swings and unreliable signals. This is the same as the 30-minute open observation window in the Futures Playbook — don't open new positions on signals here; wait for dealers to digest the pre-market hedge load.
How to behave on event days
Frame boundaries, drop prediction
Don't guess direction; mark the extreme Gamma and key structure, then wait for price to interact
Cut size / stay flat
Cut 30–50% (or to zero) 30 min before the event; never carry full size through it
Wait out the observation window
Give 30 min post-event for dealers to re-hedge and Market State to recalibrate
Beware decoys
A convexity spike = hedging, not reversal; a big call = possibly body armor for a short
Invalidation & limits
1. This chapter is "how not to get fooled," not "how to make money on event days"
The best event-day trade is often no trade. Don't read this and assume you can reliably profit on FOMC day.
2. Decoy signals can't be perfectly distinguished
"Institutions playing poker" means the information itself is deliberately polluted. You cannot see through every large order's true intent on an event day. Accept this and manage uncertainty with size reduction / flat, not with ever-more-complex interpretation.
3. Different events behave differently
FOMC (with a presser, two-stage moves), CPI / NFP (data-type, instant moves), and geopolitical shocks (no warning) differ mechanically. This framework fits "scheduled major events"; surprises can only be handled by disciplined risk control.
Chapter summary
Institutions play poker on event days
Normally reliable signals are deliberately polluted.
Three traps
Calls as short cover; positive convexity = hedging, not reversal; volatility crash harvests followers.
The violent open is a hedge schedule
Midnight settlement → 3 AM hedging → 9:30 burst, not retail noise.
The best trade is no trade
Cut size / stay flat / wait out the window; manage uncertainty with discipline.
Extreme Gamma Sniping
Wait for price to be magnetized into the max positive / negative Gamma extremes, then fire high-probability reversals using Theta timing, price-volume rejection, and 0DTE targets
The OPEX Week Playbook
The gamma mechanics of options expiration week and an ES futures game plan — treat institutional hedging flows as a scheduled opportunity, not a random volatility event