SPY

S&P 500 ETF

$747.03ATR $8.40

Best Window

11:30-12:00

57% trend prob

Avoid Trend

9:30-10:00

39% trend prob

Peak Volume

11.9M

at 3:30-4:00

Peak Range

$0.40

at 9:30-10:00

How to Read This

Trend probability is the share of recent intraday candles in that bucket that closed directionally.

Best window highlights the strongest directional tendency, not an automatic trade signal.

Avoid trend marks the weakest trend-following bucket, often better suited for patience or fade setups.

Volume & Volatility Heatmap

09:30

10:00

10:30

11:00

11:30

12:00

12:30

13:00

13:30

14:00

14:30

15:00

15:30

Volume

6.6M

4.5M

3.6M

2.8M

2.1M

2.3M

1.6M

2.0M

1.8M

2.5M

2.7M

4.1M

11.9M

Volatility

2.4%

2.3%

2.0%

1.6%

1.3%

1.2%

1.1%

1.3%

1.4%

1.6%

Avg Range

$0.4

$0.38

$0.33

$0.26

$0.22

$0.2

$0.18

$0.22

$0.23

$0.27

Trend Prob

39%

47%

51%

43%

57%

51%

48%

54%

49%

47%

55%

49%

44%

Volumelow → high

Volatilitylow → high

Avg Rangelow → high

Trend Prob<30% → >60%

Each row is scaled independently — colour compares a bucket to the rest of this ticker's own day, not to the other rows. Trend Prob is the only diverging scale: 50% is a coin flip, so amber marks the neutral band and colour there means direction, not intensity.

Detailed Statistics by Time Window

Window	Avg Volume	Avg Range	Volatility	Trend Prob	Avg Return
9:30-10:00	6.61M	$0.4	2.4%	39%	-0.24%
10:00-10:30	4.54M	$0.38	2.3%	47%	-0.17%
10:30-11:00	3.55M	$0.33	2.0%	51%	+0.06%
11:00-11:30	2.83M	$0.33	2.0%	43%	-0.08%
11:30-12:00	2.06M	$0.26	1.6%	57%	+0.12%
12:00-12:30	2.25M	$0.22	1.3%	51%	+0.08%
12:30-1:00	1.62M	$0.2	1.2%	48%	+0.02%
1:00-1:30	2.04M	$0.2	1.2%	54%	+0.03%
1:30-2:00	1.75M	$0.18	1.1%	49%	+0.03%
2:00-2:30	2.46M	$0.22	1.3%	47%	+0.03%
2:30-3:00	2.69M	$0.22	1.3%	55%	+0.19%
3:00-3:30	4.05M	$0.23	1.4%	49%	-0.09%
3:30-4:00	11.95M	$0.27	1.6%	44%	-0.21%