Quiet Dark Pools in Steel and Aggregates, 94% Calls in Nucor and a Put Lean in Vulcan: GTA Terminal Data for Contractor Bids (November 10-11, 2026)

Steel and aggregates are two of the biggest line items in a contractor's bid, and the stocks of the companies that make them traded quietly off the exchanges on Tuesday, November 10, 2026. According to GTA Terminal data from Global Traders Academy, dark-pool volume in Nucor, Steel Dynamics, Vulcan Materials and Martin Marietta all came in below each stock's normal level, while the options money split: call-heavy in the two steelmakers, put-heavy in Vulcan. Here is what that mix means for site contractors, fabricators and anyone pricing concrete, rebar or structural steel into next year's jobs.

Dark pools: below normal across the group

GTA's dark-pool checks for the November 10 session showed the same quiet pattern in all four names:

• Nucor: 457,487 shares off the exchanges, 0.8x its 20-session average, 37.5% of volume, per GTA's Nucor dark-pool check.

• Steel Dynamics: 283,163 shares, 0.7x normal, 36.3% of volume.

• Vulcan Materials: 352,844 shares, 0.6x normal, 36.5% of volume, per the Vulcan off-exchange report published November 11.

• Martin Marietta: 319,120 shares, 0.7x normal, but 46.0% of volume, the highest share in the group, as it has been all week (51.3% on November 5).

Below-normal dark-pool volume usually means big investors were not moving size in either direction. That makes the options money the louder signal this time.

Options: steel calls, aggregates puts

Nucor had 94% of its options premium in calls in GTA's latest scan, a strong call lean, with the stock in an uptrend above its 50-day and 200-day averages and 9% below its 52-week high. Steel Dynamics had 73% in calls in the November 10 scan; by late morning on November 11 it traded at $238.94 with $160K of $243K in premium in calls (66%), sitting between its 50-day average of $238.40 and its 20-day average of $241.30. Track the steelmaker on the Nucor quote page.

Vulcan went the other way. At $284.95 on the morning of November 11, its chart leaned bullish, above both its 20-day ($273.82) and 50-day ($258.19) averages, but 93% of its $29K in premium sat in puts. That is a small dollar total, so treat it as a light read. Martin Marietta traded at $524.33, just above its 20-day average of $520.48, with a mixed trend: above its 50-day but below its 200-day average, 26% below its 52-week high. Follow aggregates on the Vulcan Materials stock page.

What it means for contractors and fabricators

• Steel sentiment is firm. Call-heavy flow in both big steelmakers, with Nucor in an uptrend, does not point to falling steel prices soon. If you have structural steel or rebar in a bid that runs into next year, consider escalation language or locking supplier quotes early.

• Aggregates are less clear. Vulcan's chart is strong while its options lean bearish on light money, and Martin Marietta is still well off its high. Stone, sand and asphalt pricing tends to be local, so your quarry relationships matter more than the stock tape.

• Quiet dark pools mean no big repositioning. Institutions did not rush in or out of materials on Tuesday. That fits a market waiting for the next demand data rather than reacting to one.

• Equipment timing. Firm materials sentiment usually tracks steady infrastructure work. If your backlog supports it, that is a reason to line up loaders, dump trucks or rebar benders before the spring rush.

GTA's comparison of dark pools and lit exchanges explains why off-exchange share matters. For the group view, see the GTA Terminal.

For the session before, read our report on steel calls returning and Vulcan's 85% puts, and for the cost side, how materials and steel costs feed into bids.

A word of caution

Options and dark-pool readings are a signal, not a guarantee. Put buying can be hedging, small premium totals can flip in a day, and intraday figures can change by the close. This article is general business information, not investment advice.

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