Turtle Trading Scan

S&P 500 · trend-following breakout screen · generated 2026-09-30 18:47 UTC

Overview

Symbols scanned

503

S1 breakouts (20d)

S1 near breakout

S2 breakouts (55d)

S2 near breakout

Avg volatility (N%)

2.96%

Position sizing

One Unit risks 1% of your portfolio per N of movement. Enter your portfolio size and the Unit (shares) and Unit cost columns below recalculate for your account.

Portfolio size ($)

Risk per Unit: $100 (1% of portfolio) · a full 2N stop-out loses about $200 (2%). Your entry is remembered on this device.

Very quiet stocks can imply a Unit costing more than your whole portfolio — the original Turtles traded futures on margin, where that's possible. In a cash account it isn't, so those rows are capped at the shares you can afford and flagged capped (hover the flag for your actual, sub-2% risk).

System 1 — 20-day breakout

Faster system: enter on a close above the prior 20-day high; exit on a close below the prior 10-day low. "Near" = within ½N of the breakout level.

Showing the top 25 of 34 signals (sorted by distance to breakout).

Symbol	Status	Close	20d high	Distance (×N)	Distance (%)	N ($)	N (%)	2N stop	Unit (shares)	Unit cost	Exit (10d low)
RVTY	Broken out	156.1	153.06	-0.66	-1.95%	4.58	2.93%	146.94	21	$3,278	140.08
PANW	Broken out	399.21	396.3	-0.16	-0.73%	17.82	4.46%	363.57	5	$1,996	356
NTAP	Broken out	210.97	210.04	-0.12	-0.44%	7.81	3.7%	195.35	12	$2,532	186.13
LRCX	Broken out	328.45	328.32	-0.01	-0.04%	15.13	4.61%	298.19	6	$1,971	265.75
CDNS	Near	332.52	332.84	0.03	0.1%	11.4	3.43%	310.04	8	$2,660	274.16
CRL	Near	298.06	298.4	0.04	0.11%	9.64	3.23%	279.12	10	$2,981	270.88
ROK	Near	437.73	438.5	0.07	0.18%	10.45	2.39%	417.6	9	$3,940	406.92
AMAT	Near	511.57	513.28	0.08	0.33%	21.53	4.21%	470.22	4	$2,046	411.51
TT	Near	456.21	457.18	0.09	0.21%	10.86	2.38%	435.46	9	$4,106	416.97
TMO	Near	681.47	682.98	0.1	0.22%	15.45	2.27%	652.08	6	$4,089	638
MSFT	Near	517.92	519.4	0.13	0.29%	11.84	2.29%	495.72	8	$4,143	487.23
KEYS	Near	365.27	366.88	0.15	0.44%	10.98	3.01%	344.92	9	$3,287	316.45
KLAC	Near	195.96	197.47	0.18	0.77%	8.42	4.3%	180.63	11	$2,156	165.89
WAT	Near	443.15	445.48	0.2	0.53%	11.52	2.6%	422.44	8	$3,545	415.94
CRWD	Near	265	267.69	0.23	1.02%	11.76	4.44%	244.17	8	$2,120	230.85
FTNT	Near	179.71	181.37	0.25	0.92%	6.59	3.67%	168.19	15	$2,696	166.09
HPE	Near	64.74	65.65	0.26	1.41%	3.46	5.34%	58.73	28	$1,813	55.02
JCI	Near	150.07	151	0.26	0.62%	3.58	2.39%	143.84	27	$4,052	138.04
P	Near	130.78	132.43	0.26	1.27%	6.33	4.84%	119.77	15	$1,962	95.43
VEEV	Near	286.02	288.38	0.26	0.82%	8.95	3.13%	270.48	11	$3,146	257.87
ILMN	Near	276.06	278.99	0.27	1.06%	10.79	3.91%	257.41	9	$2,485	223.7
WBD	Near	30.8	30.92	0.31	0.41%	0.4	1.3%	30.12	250	$7,699	27.74
TXN	Near	281.73	284.39	0.32	0.94%	8.32	2.95%	267.75	12	$3,381	257.1
MRVL	Near	262.57	267.48	0.35	1.87%	14.06	5.35%	239.36	7	$1,838	224.58
ON	Near	76.35	77.68	0.37	1.74%	3.61	4.73%	70.46	27	$2,061	65.8

System 2 — 55-day breakout

Slower, higher-conviction system: enter on a close above the prior 55-day high; exit on a close below the prior 20-day low. "Near" = within ½N of the breakout level.

Symbol	Status	Close	55d high	Distance (×N)	Distance (%)	N ($)	N (%)	2N stop	Unit (shares)	Unit cost	Exit (20d low)
RVTY	Broken out	156.1	153.06	-0.66	-1.95%	4.58	2.93%	146.94	21	$3,278	120.9
NTAP	Broken out	210.97	210.04	-0.12	-0.44%	7.81	3.7%	195.35	12	$2,532	161
PANW	Broken out	399.21	398.88	-0.02	-0.08%	17.82	4.46%	363.57	5	$1,996	321.39
TMO	Near	681.47	682.98	0.1	0.22%	15.45	2.27%	652.08	6	$4,089	594.82
MSFT	Near	517.92	519.4	0.13	0.29%	11.84	2.29%	495.72	8	$4,143	486
KEYS	Near	365.27	366.88	0.15	0.44%	10.98	3.01%	344.92	9	$3,287	311.43
WAT	Near	443.15	445.48	0.2	0.53%	11.52	2.6%	422.44	8	$3,545	392.95
CRWD	Near	265	267.69	0.23	1.02%	11.76	4.44%	244.17	8	$2,120	200.6
FTNT	Near	179.71	181.37	0.25	0.92%	6.59	3.67%	168.19	15	$2,696	151.8
HPE	Near	64.74	65.65	0.26	1.41%	3.46	5.34%	58.73	28	$1,813	45.7
P	Near	130.78	132.43	0.26	1.27%	6.33	4.84%	119.77	15	$1,962	89.64
ILMN	Near	276.06	278.99	0.27	1.06%	10.79	3.91%	257.41	9	$2,485	200.01
WBD	Near	30.8	30.92	0.31	0.41%	0.4	1.3%	30.12	250	$7,699	27.74
MRVL	Near	262.57	267.48	0.35	1.87%	14.06	5.35%	239.36	7	$1,838	200.62
BIIB	Near	227.76	230.49	0.48	1.2%	5.74	2.52%	219.01	17	$3,872	208.93
AES	Near	14.89	14.91	0.5	0.17%	0.05	0.34%	14.81	671 capped	$9,988	14.74

The Turtle Rules — how to trade these signals

Measure volatility first. N is the 20-day Average True Range — the stock's typical daily dollar move. Every other rule is expressed in N, so position size and risk automatically adapt to each stock's volatility.
Size positions in Units. One Unit risks 1% of your account per N of movement: shares = (1% of account) ÷ N. Enter your portfolio size in the Position sizing box above and the "Unit (shares)" and "Unit cost" columns show this for your account. A volatile stock gets fewer shares; a quiet one gets more — equal risk either way.
Enter on the breakout. System 1: buy when price breaks above the prior 20-day high. System 2: buy when price breaks above the prior 55-day high. Never anticipate — wait for the level to actually break.
Always use the 2N stop. Place a stop-loss 2N below your entry (the "2N stop" column). With Unit sizing, being stopped out costs about 2% of your account — a survivable loss, every time.
Pyramid winners, never losers. Add one Unit each time price moves ½N in your favor, up to a maximum of 4 Units per stock. After each add, raise the stop to 2N below your most recent entry.
Exit only at the channel low. System 1 exits on a close below the prior 10-day low; System 2 below the prior 20-day low (the "Exit" column). No profit targets — the big trends pay for all the small losses, and you must let them run.
Respect the portfolio limits. Max 4 Units in one stock, 6 Units in closely correlated stocks, and 12 Units in one direction overall. Diversification of breakouts is part of the system.

This scan is long-only. The original System 1 filter (skip the signal if the last S1 breakout was a winner) is omitted — it depends on your own trade history; System 2 signals are always taken. Losing streaks are normal: the system profits from a few large trends, not a high win rate.