The loudest open question in markets is whether the AI data-center buildout can actually be built — the power, not the chips. Natural gas is the marginal fuel for new US data-center power. The managed-money book in natural gas just answered with contracts, not words: after weeks net short, funds flipped net long Friday and then pressed the trade Monday as the power debate dominated coverage.

The Flip, Session by Session

XTech Global Futures Flow positions every trader group in NG (December 2026 delivery) at each close. Managed-money net position, long contracts minus short contracts:

• Tuesday Nov 3 close: net short 22,123

• Wednesday Nov 4 close: net short 22,781

• Thursday Nov 5 close: net short 24,255

• Friday Nov 6 close: net long 12,925 — the flip

• Monday Nov 9 close: net long 45,405 — pressed

That is a swing of 69,656 contracts in two sessions. Producers sold into the fund buying: the producer/merchant group's net short widened from 1,040 to 3,092 contracts over the same two closes. Swap dealers held the other side at 244,619 net short Monday, and nonreportables joined the long side.

Both Sides of the Data-Center Debate, Measured

The press debates whether data-center power gets built. The futures book shows who is positioned as if it does: managed money moved from a multi-week short to its largest net long of the period in two sessions, while the groups that actually move the physical gas hedged into their buying. On a price chart all of this is one line. Classified by group, it is an argument with two visible sides.

Contract counts are not comparable across markets — the robust read is direction and size of change within a single market. Within NG the direction is unambiguous, and the close-by-close sequence is exactly what a daily record preserves and a weekly print compresses into one unverifiable number.

Data Source: XTech Global Futures Flow

The analysis draws on XTech Global Futures Flow Forecasts, which measures position-level flow across 82 futures markets at every daily close, classified into managed money, producers, swap dealers and other reportables. The methodology and its 2011–2026 record are in the white paper below.