Market Commentary
Joe Tigay

The May 6, 2010 Flash Crash — What It Felt Like in the VIX Pit

The history of finance is full of collapses, but the Flash Crash of May 6, 2010, wasn’t a slow burn; it was a sudden, violent decoupling of reality. While analysts have focused on the algorithms and the 75,000 E-Mini contracts, their reports miss the essential, terrifying truth: what it felt like when liquidity vanished.

My perspective on that day isn’t academic—it’s visceral. As a VIX and SPX options pit market maker at the Cboe, I was at the very epicenter of the derivatives engine that amplified the disaster. This analysis combines my raw, minute-by-minute memory of the floor with the precise data structure I developed in partnership with Gemini 3 to build a forensic account of the collapse.

Part I: The Geopolitical Tinderbox – The Greek Contagion

To understand the Flash Crash, you must first understand the state of existential fear that had poisoned the atmosphere in the weeks leading up to May 6th. The US equity markets did not crash in a vacuum; they were already structurally and psychologically fragile, conditioned by the escalating European sovereign debt crisis.

By early May 2010, the focus of global anxiety had shifted entirely from the American subprime crisis to the potential implosion of the Eurozone. Every trader in Chicago was tracking the fate of the PIIGS (Portugal, Italy, Ireland, Greece, Spain). The fear was not just default, but that a “domino effect” would shatter the Euro currency itself.

On May 6th, the mood was oppressive. The Euro was in freefall against the Dollar and the Yen. This wasn’t just a minor fluctuation; it was a clear signal that the market was pricing in the breakup of a major economic bloc. On our screens, we saw a massive “flight to quality,” with capital flooding into US Treasury notes and gold surging 2.5%. This was a market pricing in existential risk, deeply distrusting the stability of sovereign promises.

The immediate trigger for this heightened state was the Greek bailout vote and the social chaos it unleashed:

  • The Priming: May 5th Riot Visuals The day prior to the crash, the Greek government was moving toward passing the brutal austerity measures required for the EU-IMF €110 billion bailout package. The news feeds in the pit were dominated by images of Syntagma Square in Athens engulfed in tear gas and violent clashes. The tragic firebombing of the Marfin Egnatia Bank, which killed three people, served as a visceral confirmation: the measures required to save the Euro were socially unenforceable. These visuals primed traders for pandemonium—we expected a chaotic, noisy breakdown of order.

  • The Omen: May 6th Cognitive Dissonance By the afternoon of May 6th, the visual narrative shifted, creating a terrifying psychological effect. While the financial wires screamed about contagion, the live video feeds from Athens showed something ominous: silence. The protests had dissipated, leaving the city center eerie and deserted in the wake of the tragedy. For a pit trader, silence is the ultimate red flag. Noise means bids and offers are clashing; silence means liquidity has withdrawn. The empty streets became a metaphor for the electronic order books of the S&P 500: everyone had fled. This visual cue reinforced the sense of systemic abandonment right before the true crash began.

The US market was not taken by surprise; it was already wounded by global anxiety and perfectly positioned for the gamma feedback loop detailed in Part II.

Part II: The Gamma Trap — The Specifics of Where I Stood

My post in the VIX pit was the worst place to be on May 6th, but historically, it was often amazing. The life of a derivatives market maker is defined by hours of boredom coupled with moments of sheer terror. For years, the steady, predictable volatility premium meant it paid handsomely to sell VIX upside calls—until the day it didn’t. We stood next to a bunch of odd folks, forced to stand shoulder-to-shoulder for seven hours a day, five days a week, for years on end, all relying on that premium. That routine profitability made the disaster that much more jarring.

The fear on May 6th was mechanical, driven by one massive, specific problem: upside VIX calls in general.

In the weeks and days leading up to May 6, the market’s anxiety about Greece translated into massive, persistent demand for crash protection. Upside VIX calls were non-stop bid.

My major headache, which was common among all the market makers around me, centered on the most heavily traded strikes: the 27.5 calls and the 30 calls. As a market maker, I was forced to sell these calls, putting me in a dangerously large short gamma ($\Gamma$) position. The only strike I was consistently long was the 22.5 call. As the VIX climbed higher, the short gamma risk grew exponentially. I was looking at a six-figure loss and clung to a desperate hope for a reversal.

The pre-existing short-gamma position ensured that when the crisis escalated, the forced buying of VIX futures would push the volatility complex higher, setting the stage for the catastrophic E-Mini selling.

Here is how that pre-existing, universal positioning destroyed the market:

  1. Forced Buying: When the crisis escalated on May 6 and VIX started to spike toward 30, the delta of the short 27.5 and 30 calls surged. The pain intensified because the long 22.5 calls were quickly losing their hedging power. To maintain a neutral position, I was forced to frantically buy VIX futures to hedge my exploding short-gamma exposure. My hedges were moving the market.

  2. The Engine of Destruction: This massive, forced buying of VIX futures pushed the entire volatility complex higher. Algorithms read the spiking VIX as a sign of imminent collapse and started aggressively selling E-Mini S&P 500 futures.

  3. Positive Feedback: The E-Mini selling drove stocks down, which pushed the VIX up even more, making the short position in those higher strikes an even bigger problem, forcing me and my colleagues to buy more VIX futures to re-hedge.

The VIX pit, where I stood, became the engine of destruction, twisting human prudence (the desire to hedge) into a catastrophic, self-fulfilling prophecy.

Part III: The Trigger — The May 35 Call Order and the Eruption

The market was already bleeding, but the trigger was human—a monumental order that promised salvation but delivered catastrophe.

Mid-market, with the pain already sickening, a huge order came into the pit: someone wanted to sell the May 35 calls. This was an enormous order, and the first sign of a major institutional player trying to close out a position. The entire pit—every market maker stuck in the same hole—leaned in, eager to buy, hoping to stop the bleeding.

The broker asked for a market. The quote came back $0.70 bid, $0.80 offered. Fair value was $0.75, but that value was based on a super-rich volatility level, meaning buying those calls would lock in a loss on the short-vol positions we were already trapped in. It was a choice between taking a defined loss now or facing an unknown collapse later.

The order came in right at $0.75. I knew I had to act. I got on the phone with Brian Stutland, Head Trader at Equity Armor Investments and CNBC’s “Fear Merchant,” whose instinct was legendary: “When it comes to big moments like this, buy it. Don’t just buy a little, buy a lot.”

  • The First Strike: I immediately bought 2,000 contracts—a huge order for me or anyone in the pit. I had to get my size; if I waited, the entire pit would split it up. The rest of the pit groaned, knowing I had just taken a massive, necessary loss.

  • The Eruption: This order to sell VIX calls was paired with a simultaneous order in the SPX pit to buy SPX puts. The selling of those VIX calls was the pin that detonated the market. It was at that very instant the bottom fell out of the S&P 500. The VIX futures didn’t just rise—they skyrocketed. As the VIX went up, the S&P 500 went lower, meaning market makers in both pits were suddenly fighting for options orders that were now firmly in their favor. The trading floor immediately erupted in a violent cacophony of loud screams—the sound of millions being made and lost in a flash.

The rest of the pit now desperately wanted the trade. I had to fight—I literally stood on my stool, climbing over barriers to get in the broker’s face and get my size. I ultimately bought 5,000 contracts. It locked in a huge loss, but that loss paled in comparison to the millions I would have faced had I stayed completely short.

That day’s trade numbers looked like Monopoly money: a $6 million day trade gain on that single position, but my overall open position was still down more. It was surreal. It felt incredibly strange to see the market whipsaw violently down then immediately back up with such speed. After that furious rebound, the “eerie quiet” finally settled over the floor for the rest of the day, an unnatural silence that was far more unnerving than the chaos itself.

Part IV: The Structural Lesson

The market eventually snapped back, but the lesson was permanent. The crash exposed the holographic nature of liquidity and the danger of an unconstrained, high-speed environment.

Since that day, the system has been re-engineered with circuit breakers and rule changes, which Gemini 3 helped me organize:

Table 1: Structural Differences Between the Crash and the Reform Era

Feature May 6, 2010 (The Flash Crash Era) The Reform Era (Post-2010)
Circuit Breakers Market-wide only. Single-Stock Circuit Breakers fully active.
Market Access “Naked Access” allowed. Naked Access banned (Rule 15c3-5).
Stub Quotes Permitted (bids at $0.01). Banned. Market makers must quote within tight bands.

The market had been “sanitized,” but the fundamental lesson of risk remains.

Conclusion and My Personal Lesson

The lesson burned into my memory from standing in the pit that day is absolute: Never go a day unhedged, and always be looking for opportunities in crisis.

That single principle is the core of the Rational Equity Armor Fund today. While others fear volatility, we embrace it. We maintain a systematic, constant long position in VIX futures—our protective armor. When a crisis hits and the VIX goes up, we opportunistically sell those VIX futures at high prices, simultaneously using that cash flow to buy quality stocks when the market is plummeting. This is our built-in “buy low, sell high” strategy. We ensure that when liquidity vanishes and the market goes silent, we are positioned not just to survive, but to accumulate.

Joe Tigay is a Portfolio Manager at Equity Armor Investments and former VIX and SPX options pit market maker. He currently manages the Rational Equity Armor Fund and the Catalyst Hedged Equity Fund.