Cummins Swings From 94% Calls to 86% Puts With an Oversold RSI of 25: Engine Data for Truck and Fleet Buyers (GTA Terminal, Nov. 12-13, 2026)

Cummins builds the diesel and natural gas engines inside a large share of America's heavy trucks, buses and job-site machines, so its stock is a useful read on the engine and powertrain market. GTA Terminal data from Global Traders Academy shows a sharp reversal in how options traders positioned on Cummins, along with a chart that has fallen into oversold territory. Here is the detail and what it means for fleet owners and equipment buyers.

The swing in the options money

On November 12, GTA reported that 94% of Cummins options premium was in calls. In the latest scan cited by the Cummins dark pool check for November 12, published Friday at 11:54 AM ET, that had flipped: 14% of CMI's options premium went into calls and 86% into puts, which GTA calls a put-heavy lean.

A move from heavy calls to heavy puts in a short span shows how unsettled traders are about the stock. Some of that put money may be protection rather than a bet on a further fall, but either way, the confident mood of earlier in the week did not hold.

Dark pools: close to normal, a little lighter

On November 12, 534,877 Cummins shares traded away from the public exchanges, in dark pools and broker internalizers. That was 0.9 times the stock's 20-session average, close to normal, and 38.8% of its total volume. GTA's five-session table shows the trend:

• November 6: 879,733 shares, 40.6% of volume

• November 9: 559,921 shares, 40.6%

• November 10: 555,160 shares, 37.2%

• November 11: 756,408 shares, 41.7%

• November 12: 534,877 shares, 38.8%

Off-exchange volume has stayed in a steady band, without the kind of spike that usually signals a big institution building or unloading a position. You can follow the numbers on the CMI stock page with daily flow.

An oversold chart

The chart is the weakest part of the picture. Cummins was in a downtrend, below both its 50-day and 200-day averages, 39% below its 52-week high, with an RSI of 25. GTA flags any reading under 30 as oversold, meaning the stock has fallen fast relative to its recent history. The GTA Proprietary Pattern Model had no live setup on the daily chart. The explainer on what an RSI below 30 signals covers why oversold stocks sometimes bounce and sometimes keep sliding.

What this means for fleets and equipment buyers

• Truck and engine demand. A stock 39% off its high with put-heavy options money suggests investors expect a softer stretch for heavy-truck and engine orders. In past freight slowdowns, that has meant more room to negotiate on new trucks.

• Parts and service. Engine makers lean on parts and service revenue when new orders slow. Fleet owners running older engines longer should budget for maintenance, since that is where the industry tends to make up lost sales.

• Timing a purchase. Oversold readings can come before a rebound, so a weak stock is not a promise of lower truck prices. Buy when the work and your cash flow justify it, and use quiet periods to shop for terms.

A word of caution

Options leans can flip within days, as this one did, and an oversold RSI is not a forecast. Treat this as a signal, not a guarantee. It is market data for context, not investment advice.

Keep reading

See our earlier post on the $2.4 million Cummins call bet on November 12 and today's look at PACCAR's flip to puts and Allison's call lean. Engine and truck-maker flow for every session is on this dark pool tracker.

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