greeksoup/ stock research

Unifirst Corp. options tape

These figures are updated after the US market closes, every trading day. For the live chain, go to CBOE's own page for UNF.

Updated after the US market close on 9 October 2026, with Unifirst Corp. at $260.85: open interest within 90 days was 609 call and 3,838 put contracts, a put/call ratio of 6.3; the day's volume was 26 calls and 15 puts (0.58). The most call open interest sits at the $270.00 strike (265 contracts) and the most put open interest at $250.00 (875). The at-the-money straddle for 16 October 2026, 4 days out, was priced at 2.6% of spot. For 20 November 2026, implied volatility was 37.0% at the put 5% below spot and 34.3% at the call 5% above, +2.7 points.

Spot$260.85+0.48% on the day
Put/call, open interest6.33,838 puts, 609 calls
Put/call, volume0.5815 puts, 26 calls
Priced move2.6%straddle to 16 October 2026, 4 days
30-day implied volatility34.1%
Put minus call IV, 5% out+2.7 ptsto 20 November 2026

Where the open interest sits

SideStrikeOpen interest
Calls$270.00265
Puts$250.00875

The strike with the most open interest on each side, across expiries within 90 days.

Source

Official exchange quotes, updated after each US market close. Figures describe positioning; they are not a forecast.

The same record on your computer

GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.

Install