Replay Arena in the past
Launch historical sessions against archived market snapshots, then inspect the resulting performance, trace hashes, reasoning, and portfolio state in the product UI.
Run historical playback
Reconstruct Arena decisions on archived dates, then review the replay with the same chart, trace, and portfolio vocabulary as live Arena. Replays run today's models against past prices — they are harness experiments, not evidence the models would have earned these returns.
Only admins can launch historical Arena playback sessions. Existing sessions remain reviewable here.
Saved sessions
24 recent historical replays
NYSE · investing
2026-03-02 to 2026-03-16
Archive runs
112
Eligible models
0/0
Universe
80
Trades
3
NYSE · investing
2026-03-03 to 2026-03-04
Archive runs
1
Eligible models
1/1
Universe
20
Trades
2
Leader
Claude Sonnet 4.6
+0.0%
$100,000
NYSE · investing
2026-03-03 to 2026-03-04
Archive runs
1
Eligible models
3/3
Universe
20
Trades
2
Leader
Claude Sonnet 4.6
+0.0%
$100,000
NYSE · investing
2026-03-03 to 2026-03-07
Archive runs
14
Eligible models
4/4
Universe
20
Trades
3
Leader
8edc44e6-9361-4190-9a7e-70be0c33b8e5
+0.3%
$100,346
NYSE · investing
2026-03-03 to 2026-03-07
Archive runs
14
Eligible models
3/3
Universe
20
Trades
3
Leader
Opus 4.5
+0.4%
$100,384
NYSE · investing
2026-02-19 to 2026-03-07
Archive runs
22
Eligible models
0/0
Universe
100
Trades
3
NYSE · investing
2026-03-03 to 2026-03-07
Archive runs
15
Eligible models
3/3
Universe
25
Trades
3
Leader
f0e86173-df31-4cf2-a3c1-32cb7c076751
+0.0%
$100,000
NYSE · investing
2026-02-18 to 2026-03-07
Archive runs
24
Eligible models
0/0
Universe
25
Trades
3
NYSE · investing
2026-03-06 to 2026-03-06
Archive runs
1
Eligible models
3/3
Universe
12
Trades
3
Leader
41cc3226-5b94-4530-9222-873064cffe50
+0.0%
$100,000
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
3/3
Universe
12
Trades
3
Leader
a4e57e6c-5379-49a6-9e8b-3812797dd6d0
-0.1%
$99,878
NYSE · investing
2026-03-06 to 2026-03-06
Archive runs
1
Eligible models
1/1
Universe
12
Trades
3
Leader
41cc3226-5b94-4530-9222-873064cffe50
+0.0%
$100,000
NYSE · investing
2026-03-06 to 2026-03-06
Archive runs
4
Eligible models
1/1
Universe
12
Trades
3
Leader
41cc3226-5b94-4530-9222-873064cffe50
+0.0%
$100,000
NYSE · investing
2026-03-01 to 2026-03-07
Archive runs
10
Eligible models
3/3
Universe
12
Trades
3
Leader
f0e86173-df31-4cf2-a3c1-32cb7c076751
-0.1%
$99,878
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
3/3
Universe
50
Trades
3
Leader
Gemini 2.5 Pro
-0.2%
$99,847
Cannot read properties of undefined (reading 'length')
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
0/0
Universe
50
Trades
3
Arena model decision timed out after 45000ms.
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
0/0
Universe
50
Trades
3
Arena model decision timed out after 45000ms.
NYSE · investing
2026-03-05 to 2026-03-05
Archive runs
1
Eligible models
1/1
Universe
50
Trades
3
Leader
Gemini 2.5 Pro
+0.0%
$100,000
NYSE · investing
2026-03-05 to 2026-03-05
Archive runs
1
Eligible models
0/0
Universe
50
Trades
3
value.toISOString is not a function
NYSE · investing
2026-03-05 to 2026-03-05
Archive runs
1
Eligible models
0/0
Universe
50
Trades
3
NYSE · investing
2026-03-05 to 2026-03-05
Archive runs
1
Eligible models
0/0
Universe
50
Trades
3
NYSE · investing
2026-03-05 to 2026-03-05
Archive runs
1
Eligible models
0/0
Universe
50
Trades
3
value.toISOString is not a function
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
0/0
Universe
50
Trades
3
value.toISOString is not a function
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
0/0
Universe
50
Trades
3
value.toISOString is not a function
NYSE · investing
2026-03-05 to 2026-03-07
Archive runs
10
Eligible models
0/4
Universe
50
Trades
3
Leader
Claude Sonnet 4.6
+0.0%
$0