Last 59 trading days. "Overnight" = today's Open vs the PRIOR day's Close
(the same move plotted as the pink dotted line on the chart) — each day's own Open→Close
move is not counted here. Overnight $/% is what you'd have earned holding only from close
to next open; Cum. Index is the running compounded value shown on the chart's pink line.
Date
Open
High
Low
Close
Prior Close
Overnight $
Overnight %
Cum. Index
2026-06-09
$7.95
$8.38
$7.93
$8.26
$7.91
+0.04
+0.51%
$7.95
2026-06-16
$8.36
$8.55
$8.25
$8.44
$8.26
+0.10
+1.21%
$8.05
2026-06-17
$8.43
$8.69
$8.22
$8.24
$8.44
-0.01
-0.12%
$8.04
2026-06-18
$8.35
$8.83
$8.28
$8.81
$8.24
+0.11
+1.33%
$8.14
2026-06-22
$8.76
$9.22
$8.48
$8.55
$8.81
-0.05
-0.57%
$8.10
2026-06-23
$8.57
$8.70
$8.37
$8.50
$8.55
+0.02
+0.23%
$8.12
2026-06-25
$8.70
$9.01
$8.63
$8.83
$8.50
+0.20
+2.35%
$8.31
2026-06-26
$8.83
$9.34
$8.83
$9.30
$8.83
+0.00
+0.00%
$8.31
2026-06-29
$9.35
$9.56
$9.02
$9.50
$9.30
+0.05
+0.54%
$8.35
2026-06-30
$9.37
$9.48
$8.49
$8.65
$9.50
-0.13
-1.42%
$8.23
2026-07-01
$8.78
$9.16
$8.70
$8.86
$8.65
+0.13
+1.50%
$8.36
2026-07-02
$9.07
$9.07
$8.76
$8.92
$8.86
+0.21
+2.37%
$8.56
2026-07-07
$9.38
$9.53
$9.28
$9.38
$8.92
+0.46
+5.16%
$9.00
2026-07-08
$9.14
$9.36
$8.86
$9.21
$9.38
-0.24
-2.54%
$8.77
2026-07-09
$9.39
$9.53
$9.19
$9.51
$9.21
+0.18
+1.95%
$8.94
2026-07-10
$9.51
$9.60
$9.32
$9.58
$9.51
+0.00
+0.00%
$8.94
2026-07-13
$9.66
$9.94
$9.61
$9.74
$9.58
+0.08
+0.84%
$9.01
2026-07-14
$9.53
$9.57
$8.87
$8.97
$9.74
-0.21
-2.16%
$8.82
2026-07-15
$8.95
$9.20
$8.86
$9.04
$8.97
-0.02
-0.22%
$8.80
2026-07-16
$9.17
$9.61
$9.15
$9.27
$9.04
+0.13
+1.44%
$8.93
2026-07-17
$9.09
$9.09
$8.52
$8.54
$9.27
-0.18
-1.94%
$8.75
2026-07-21
$8.15
$8.45
$8.05
$8.30
$8.54
-0.38
-4.45%
$8.36
2026-07-22
$8.27
$8.33
$8.01
$8.06
$8.30
-0.03
-0.36%
$8.33
2026-07-23
$8.27
$8.27
$8.06
$8.21
$8.06
+0.21
+2.61%
$8.55
2026-07-24
$8.21
$8.38
$8.06
$8.26
$8.21
+0.00
+0.00%
$8.55
2026-07-27
$8.42
$8.89
$8.42
$8.67
$8.26
+0.16
+1.94%
$8.72
2026-07-28
$9.10
$9.43
$9.00
$9.32
$8.67
+0.43
+4.96%
$9.15
2026-07-29
$9.29
$9.67
$9.20
$9.65
$9.32
-0.03
-0.32%
$9.12
2026-07-30
$9.65
$9.79
$9.54
$9.66
$9.65
+0.00
+0.00%
$9.12
2026-07-31
$9.70
$9.75
$9.46
$9.52
$9.66
+0.04
+0.41%
$9.16
2026-08-03
$10.00
$10.30
$9.86
$10.15
$9.52
+0.48
+5.02%
$9.62
2026-08-04
$9.96
$10.39
$9.96
$10.35
$10.15
-0.19
-1.87%
$9.44
2026-08-05
$9.87
$10.10
$9.26
$9.57
$10.35
-0.48
-4.64%
$9.00
2026-08-06
$9.55
$9.64
$8.90
$9.21
$9.57
-0.02
-0.21%
$8.98
2026-08-07
$9.19
$9.33
$9.04
$9.31
$9.21
-0.02
-0.22%
$8.96
2026-08-10
$9.10
$9.53
$9.10
$9.49
$9.31
-0.21
-2.26%
$8.76
2026-08-11
$9.47
$9.67
$9.34
$9.37
$9.49
-0.02
-0.21%
$8.74
2026-08-12
$9.24
$9.70
$9.12
$9.63
$9.37
-0.13
-1.39%
$8.62
2026-08-13
$9.71
$9.81
$9.54
$9.75
$9.63
+0.08
+0.83%
$8.69
2026-08-14
$9.79
$9.91
$9.69
$9.79
$9.75
+0.04
+0.41%
$8.73
2026-08-17
$9.63
$9.75
$9.35
$9.45
$9.79
-0.16
-1.63%
$8.58
2026-08-18
$9.55
$9.77
$9.49
$9.53
$9.45
+0.10
+1.06%
$8.67
2026-08-19
$9.53
$9.99
$9.50
$9.75
$9.53
+0.00
+0.00%
$8.67
2026-08-20
$9.70
$9.70
$9.22
$9.29
$9.75
-0.05
-0.51%
$8.63
2026-08-21
$9.26
$9.51
$9.11
$9.48
$9.29
-0.03
-0.32%
$8.60
2026-08-24
$9.49
$9.62
$9.22
$9.24
$9.48
+0.01
+0.11%
$8.61
2026-08-25
$9.22
$9.47
$9.08
$9.33
$9.24
-0.02
-0.22%
$8.59
2026-08-26
$9.37
$9.48
$9.20
$9.42
$9.33
+0.04
+0.43%
$8.63
2026-08-27
$9.40
$9.69
$9.28
$9.57
$9.42
-0.02
-0.21%
$8.61
2026-08-28
$9.55
$9.65
$9.40
$9.44
$9.57
-0.02
-0.21%
$8.59
2026-08-31
$9.32
$9.45
$9.25
$9.37
$9.44
-0.12
-1.27%
$8.48
2026-09-01
$9.46
$9.57
$9.15
$9.21
$9.37
+0.09
+0.96%
$8.57
2026-09-02
$9.24
$9.47
$9.08
$9.19
$9.21
+0.03
+0.33%
$8.59
2026-09-03
$9.33
$9.45
$9.05
$9.33
$9.19
+0.14
+1.52%
$8.72
2026-09-04
$9.22
$9.51
$9.08
$9.45
$9.33
-0.11
-1.18%
$8.62
2026-09-08
$9.35
$9.42
$9.04
$9.19
$9.45
-0.10
-1.06%
$8.53
2026-09-09
$9.23
$9.44
$8.84
$8.98
$9.19
+0.04
+0.44%
$8.57
2026-09-10
$8.77
$8.92
$8.60
$8.84
$8.98
-0.21
-2.39%
$8.36
2026-09-11
$9.55
$10.60
$9.35
$10.58
$8.84
+0.71
+8.03%
$9.03
📈 Overnight % Gain Trend
Cumulative overnight-only return, indexed to 0% on 2026-06-08
(same window as the chart overlay and table above, just plotted as % instead of $).
🗓️ Overnight End-of-Month PnL
One checkpoint per calendar month (value at the last trading day seen that month) from the
same overnight-only cumulative series above. The first and last
month shown may be partial if the data window doesn't start/end on a month boundary.
Month
Start Value
End Value
PnL $
PnL %
2026-06
$7.91
$8.23
+0.32
+4.09%
2026-07
$8.23
$9.16
+0.92
+11.21%
2026-08
$9.16
$8.48
-0.67
-7.35%
2026-09
$8.48
$9.03
+0.55
+6.48%
🌙 Overnight vs. Intraday Return
Not enough historical data yet for this ticker to compute an overnight/intraday split.
🎯 Best Strategy Backtest
See which saved strategy has the best real backtested win-rate on ATEC, with buy/sell triggers plotted right on the chart.