New Zealand Temperature

The tests show no consistent, material advantage over the no-change baseline.

Model: Agentic Investor TSFM (foundation model)

Accuracy vs naive

-2%Matches the no-change baseline over 12 tests (12 tests, 7 won)

Direction

69%No clear edge over a coin flip (25 of 36 calls right in 12 tests)

Turning points

0 of 14Anticipated no turn, as the no-change baseline does (14 turns in 12 tests, 0 without a turn)

Error vs baseline

2% higherError ratio 1.02; 1.00 is a tie.

Tests won

7 / 12Complete rolling backtests; ties count as no win.

Test period

1989-12-01 to 2024-12-013 observations ahead per test.

80% band coverage

92%Observed outcomes inside the band across all stored test windows.

• Band coverage uses all stored test windows, including model-selection windows when present; it does not determine the confidence label.
• The 80% band held more than expected outcomes; interpret its width with care.
• Evaluated 2026-11-14 against the cached history through 2024-12-01.
• This is an evaluation of the serving model; it does not establish a winner across four model classes.