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
Prior Close
Overnight $
Overnight %
Cum. Index
Open
High
Low
Close
2026-07-17
$262.32
-6.42
-2.45%
$255.90
$255.90
$264.48
$251.10
$258.69
2026-07-21
$258.69
-0.19
-0.07%
$255.71
$258.50
$263.32
$251.83
$254.79
2026-07-22
$254.79
-3.02
-1.19%
$252.68
$251.77
$252.26
$243.62
$245.77
2026-07-23
$245.77
+0.80
+0.33%
$253.50
$246.57
$248.97
$241.96
$244.39
2026-07-24
$244.39
+4.05
+1.66%
$257.70
$248.44
$248.44
$241.18
$246.86
2026-07-27
$246.86
+7.62
+3.09%
$265.66
$254.49
$257.86
$249.00
$251.86
2026-07-28
$251.86
+3.31
+1.31%
$269.16
$255.17
$255.54
$237.67
$250.88
2026-07-29
$250.88
+2.00
+0.80%
$271.30
$252.88
$273.73
$252.50
$264.20
2026-07-30
$264.20
-0.39
-0.15%
$270.90
$263.81
$270.33
$263.43
$268.56
2026-07-31
$268.56
+2.94
+1.09%
$273.86
$271.50
$278.76
$263.78
$267.97
2026-08-03
$267.97
+4.22
+1.57%
$278.17
$272.19
$278.68
$267.50
$273.60
2026-08-04
$273.60
-1.57
-0.57%
$276.58
$272.03
$289.90
$271.60
$288.15
2026-08-05
$288.15
+3.28
+1.14%
$279.73
$291.43
$292.72
$283.00
$283.17
2026-08-06
$283.17
-55.72
-19.68%
$224.68
$227.45
$243.00
$225.26
$229.29
2026-08-07
$229.29
+5.52
+2.41%
$230.09
$234.81
$248.35
$233.21
$233.93
2026-08-10
$233.93
-2.73
-1.17%
$227.41
$231.20
$262.99
$229.76
$260.78
2026-08-11
$260.78
-4.15
-1.59%
$223.79
$256.63
$258.25
$246.33
$246.78
2026-08-12
$246.78
-6.59
-2.67%
$217.81
$240.19
$255.48
$239.34
$240.91
2026-08-13
$240.91
+0.36
+0.15%
$218.14
$241.27
$253.54
$240.82
$252.24
2026-08-14
$252.24
+0.15
+0.06%
$218.27
$252.39
$257.96
$248.39
$255.46
2026-08-17
$255.46
-4.84
-1.89%
$214.13
$250.62
$254.22
$244.48
$247.32
2026-08-18
$247.32
+1.47
+0.59%
$215.41
$248.79
$253.35
$243.00
$246.00
2026-08-19
$246.00
+0.66
+0.27%
$215.98
$246.66
$246.66
$232.16
$233.52
2026-08-20
$233.52
-0.25
-0.11%
$215.75
$233.27
$236.56
$227.11
$232.55
2026-08-21
$232.55
+2.60
+1.12%
$218.16
$235.15
$236.31
$228.81
$235.62
2026-08-24
$235.62
-1.21
-0.51%
$217.04
$234.41
$234.53
$225.67
$225.77
2026-08-25
$225.77
+1.12
+0.50%
$218.12
$226.89
$229.08
$221.31
$222.99
2026-08-26
$222.99
-2.53
-1.13%
$215.65
$220.46
$234.95
$219.00
$227.67
2026-08-27
$227.67
+9.33
+4.10%
$224.48
$237.00
$251.99
$236.00
$242.93
2026-08-28
$242.93
-2.71
-1.12%
$221.98
$240.22
$247.88
$235.72
$236.98
2026-08-31
$236.98
-3.01
-1.27%
$219.16
$233.97
$239.70
$232.35
$237.04
2026-09-01
$237.04
-4.16
-1.75%
$215.31
$232.88
$237.38
$223.02
$223.84
2026-09-02
$223.84
-4.38
-1.96%
$211.10
$219.46
$219.79
$208.22
$209.23
2026-09-03
$209.23
+10.77
+5.15%
$221.96
$220.00
$221.00
$210.54
$214.76
2026-09-04
$214.76
-2.57
-1.20%
$219.31
$212.19
$214.71
$210.95
$212.93
2026-09-08
$212.93
-5.93
-2.78%
$213.20
$207.00
$211.18
$203.24
$210.23
2026-09-09
$210.23
-1.19
-0.57%
$211.99
$209.04
$225.96
$209.04
$225.27
2026-09-10
$225.27
-3.93
-1.74%
$208.29
$221.34
$227.58
$219.31
$221.72
2026-09-11
$221.72
+0.00
+0.00%
$208.29
$221.72
$225.31
$218.28
$221.21
2026-09-14
$221.21
+3.81
+1.72%
$211.88
$225.02
$233.69
$220.72
$230.05
2026-09-15
$230.05
-5.99
-2.60%
$206.36
$224.06
$232.78
$224.06
$230.27
2026-09-16
$230.27
-1.14
-0.50%
$205.34
$229.13
$236.86
$227.00
$230.79
2026-09-17
$230.79
-1.17
-0.51%
$204.30
$229.62
$239.04
$227.37
$236.00
2026-09-18
$236.00
+2.46
+1.04%
$206.43
$238.46
$238.96
$228.60
$229.92
2026-09-21
$229.92
-0.19
-0.08%
$206.26
$229.73
$245.30
$226.83
$245.05
2026-09-22
$245.05
+0.62
+0.25%
$206.78
$245.67
$249.91
$244.13
$247.47
2026-09-23
$247.47
+4.14
+1.67%
$210.24
$251.61
$256.71
$247.60
$251.49
2026-09-24
$251.49
-0.74
-0.29%
$209.62
$250.75
$258.39
$247.27
$256.92
2026-09-25
$256.92
+6.25
+2.43%
$214.72
$263.18
$280.70
$261.00
$268.13
2026-09-28
$268.13
-11.13
-4.15%
$205.81
$257.00
$272.79
$255.50
$268.70
2026-09-29
$268.70
-1.67
-0.62%
$204.53
$267.03
$269.44
$259.26
$268.56
2026-09-30
$268.56
+1.57
+0.58%
$205.73
$270.13
$277.50
$269.79
$273.85
2026-10-01
$273.85
+4.90
+1.79%
$209.41
$278.75
$280.05
$271.13
$276.46
2026-10-02
$276.46
+3.85
+1.39%
$212.32
$280.31
$281.99
$274.57
$277.22
2026-10-05
$277.22
+0.59
+0.21%
$212.77
$277.81
$281.85
$275.32
$276.42
2026-10-06
$276.42
+1.58
+0.57%
$213.99
$278.00
$285.54
$276.00
$278.24
2026-10-07
$278.24
+0.46
+0.17%
$214.35
$278.70
$281.25
$270.81
$271.34
2026-10-08
$271.34
+0.39
+0.14%
$214.65
$271.73
$278.90
$269.38
$273.80
2026-10-09
$273.80
+1.62
+0.59%
$215.92
$275.42
$294.00
$274.83
$293.26
📈 Overnight % Gain Trend
Cumulative overnight-only return, indexed to 0% on 2026-07-16
(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 %
2026-07
$262.32
$273.86
+11.54
+4.40%
2026-08
$273.86
$219.16
-54.71
-19.98%
2026-09
$219.16
$205.73
-13.43
-6.13%
2026-10
$205.73
$215.92
+10.20
+4.96%
📅 Seasonality — Close Price by Year
Each line is one calendar year's close price (or % change from that year's first trading
day, in "% from Jan 1" mode), aligned by month/day so the same point in the calendar lines
up across years. Most recent year is drawn thicker. Click a year in the legend to hide/show it.
🌙 Overnight vs. Intraday Return
Overnight (close→next open) Intraday (open→close)
From 2019-09-19 to 2026-10-09 (1,766 trading days), $1 invested
overnight-only would now be worth $2.81;
$1 invested intraday-only would be worth $2.78.
DDOG's historical return has leaned mostly on the overnight session.
This reflects a statistical pattern in past prices, not a trading strategy or investment advice —
it ignores transaction costs and slippage.
🎯 Best Strategy Backtest
See which saved strategy has the best real backtested win-rate on DDOG, with buy/sell triggers plotted right on the chart.