Strategy·Active trader··6 min read

Sustained flow beats single prints: what our tape lit up every day

A giant one-day print is often just expiry-day churn. The names that show unusual flow every session for weeks are the ones worth watching. Here are August's.

The prints that get screenshotted are almost always the loudest ones: hundreds of thousands of contracts on a single strike. But loud is not the same as meaningful. Using OptionsBell's own tape, here is the difference between churn and conviction - measured, not asserted.

The trap: 0DTE churn looks enormous

On Aug 31 our scanner logged TSLA prints of 236,000 and 274,000 contracts on strikes expiring that same day, at midpoints of $0.10 to $0.51 - Vol/OI ratios of 700x to over 1,000x. On paper, staggering. In reality, zero-days-to-expiry lottery flow: cheap, same-session, gone by the close. It tells you the day was volatile. It tells you almost nothing about the next two weeks.

Contrast one longer-dated print from the same week: CoreWeave (CORZ), a $27 strike expiring in December, 40,000 contracts against just 143 in open interest - a 280x Vol/OI - at 111 days out. Same 'unusual' label. Completely different intent. One is noise with a big number attached; the other is someone defining an outcome a quarter away.

The real tell: flow that repeats

The strongest signal in our data is not any single print - it is persistence. These names showed unusual flow on our tape day after day, uninterrupted:

  • AMZN and NVDA: unusual flow on 65 consecutive sessions - effectively every trading day we tracked.
  • AVGO and INTC: 49-day streaks.
  • AAPL: 46 days. HOOD: 40 days. META: 34 days.
  • GOOGL and GOOG: 32 days each.
  • HIMS: 32 days, and the most call-lopsided of the group - a volume call/put ratio averaging 5.4, meaning roughly five call contracts for every put, every day, for over a month.
One 200,000-lot print is an event. Thirty straight days of elevated flow is a campaign. Campaigns are what you want to catch early.

How to act on the distinction

When you see a monster print, check two fields before you care: days to expiration and the strike's distance from spot. Same-day, near-the-money, sub-dollar premium is churn - log it and move on. Longer-dated, out-of-the-money size is positioning - worth a question. Then check whether the name has shown up on the tape repeatedly. A single unusual day is a coin flip. A streak is a thesis someone keeps funding, and those are the names that reward a watchlist.