Unusual bullish activity in 3M (MMM) shows traders positioning for upside before earnings: 13,929 contracts on the July 17 $170 strike, nearly 12 times existing open interest, at premiums of just $0.08–$0.18.

Calls Dominating the Options Flow

3M's options market is showing heavy bullish positioning. Traders are buying calls at a 6-to-1 ratio over puts, with the July 17 $170 call drawing the most interest: 13,929 contracts traded versus 1,177 already open. The fresh volume represents roughly 12 times the existing open interest in that strike.

Cheap Premium, Defined Risk

These calls are trading for pocket change. Buyers paid $0.08 to $0.18 per contract—when traders spend that little on calls, they're paying for leverage and directional exposure, not insurance. The timing is deliberate: July 17 expiration comes before 3M reports Q2 earnings on July 21 before the bell. That compressed window keeps premiums low while leaving room for a post-earnings move.

What It Signals

The 6-to-1 call-to-put ratio shows demand for upside exposure far outweighs hedging demand. This could reflect bullish sentiment—traders anticipating solid earnings. Or it could indicate speculation on volatility: if 3M moves sharply after earnings, the stock may clear $170 before the 17th. Either way, the positioning is tilted toward gains.

The Math

If 3M stays below $170 by July 17, these calls expire worthless. If the earnings report disappoints, the same outcome follows. But a strong beat and rally could make these cheap calls profitable quickly—the classic risk-reward setup that attracts bullish traders before major catalysts.