Paper Trade library

Strategy 03

Active paper model

QQQ/SPY Trend Switch

A two-sided trend model: own 50% QQQ / 50% SPY in healthy markets, move to short Treasuries in mixed conditions, and use a limited PSQ inverse sleeve only when both trends are clearly broken.

Educational simulation only, not investment advice. PSQ is an inverse ETF with daily-reset behavior; it can behave very differently from simply holding a long-term short position.

Current status

Risk-on

Latest Friday review: Aug 27, 2026

2026 paper value
$106,638
QQQ vs 200-day
+9.47%
SPY vs 200-day
+8.62%
QQQ 60-day return
-2.09%

The three positions

Risk-on

Both QQQ and SPY are above their 200-day averages: 50% QQQ / 50% SPY.

Defensive

The trend is mixed: 100% SHY, a short-term Treasury ETF.

Bear mode

Both trends are broken and QQQ momentum is negative: 50% PSQ / 50% SHY.

Rules of record

Every Friday, compare QQQ and SPY with their own 200-day averages. Above the average means the long-term trend is healthy; below it means the trend is broken.

Bear mode also requires QQQ to be lower than it was 60 trading days earlier. This extra filter tries to avoid using the inverse ETF during a brief dip.

Historical record

Weekly trend backtests

Each calendar year starts independently with $100,000. Select a year to see every Friday decision.

Model return

+7.59%

Ending value

$107,589

QQQ buy and hold

+17.89%

50/50 QQQ + SPY

+15.68%

Allocation switches

2

2026 Friday decision journal

Review dateQQQ closeQQQ vs 200-daySPY vs 200-dayTotal portfolioModeAction
Jan 2, 2026$612+10.03%+9.45%$100,000Risk-onHeld
Jan 9, 2026$625+11.76%+10.64%$101,901Risk-onHeld
Jan 16, 2026$620+10.06%+9.66%$101,285Risk-onHeld
Jan 23, 2026$621+9.64%+8.72%$101,226Risk-onHeld
Jan 30, 2026$620+8.62%+8.42%$101,358Risk-onHeld
Feb 6, 2026$608+5.71%+7.51%$100,262Risk-onHeld
Feb 13, 2026$601+3.74%+5.53%$98,983Risk-onHeld
Feb 20, 2026$607+4.48%+6.30%$100,107Risk-onHeld
Feb 27, 2026$606+3.68%+5.25%$99,731Risk-onHeld
Mar 6, 2026$598+2.01%+2.79%$98,120Risk-onHeld
Mar 13, 2026$592+0.60%+0.90%$96,890Risk-onHeld
Mar 20, 2026$581-1.68%-1.21%$94,969Bear modeSwitched
Mar 27, 2026$562-5.06%-3.63%$96,581Bear modeHeld
Apr 10, 2026$610+2.65%+2.80%$92,783Risk-onSwitched
Apr 17, 2026$648+8.58%+7.08%$97,746Risk-onHeld
Apr 24, 2026$663+10.63%+7.28%$99,146Risk-onHeld
May 1, 2026$673+11.82%+7.89%$100,384Risk-onHeld
May 8, 2026$710+17.34%+10.00%$104,358Risk-onHeld
May 15, 2026$708+16.25%+9.78%$104,289Risk-onHeld
May 22, 2026$717+16.94%+10.26%$105,384Risk-onHeld
May 29, 2026$738+19.70%+11.46%$107,701Risk-onHeld
Jun 5, 2026$704+13.56%+8.21%$103,884Risk-onHeld
Jun 12, 2026$721+15.51%+8.43%$105,407Risk-onHeld
Jun 26, 2026$707+12.03%+6.14%$103,598Risk-onHeld
Jul 10, 2026$726+13.96%+9.24%$106,818Risk-onHeld
Jul 17, 2026$695+8.73%+7.19%$103,726Risk-onHeld
Jul 24, 2026$684+6.59%+6.26%$102,584Risk-onHeld
Jul 31, 2026$688+6.86%+7.12%$103,425Risk-onHeld
Aug 7, 2026$723+11.80%+10.45%$107,883Risk-onHeld
Aug 14, 2026$731+12.55%+10.47%$108,705Risk-onHeld
Aug 21, 2026$713+9.47%+8.62%$106,638Risk-onHeld

Historical adjusted-close data snapshot: Yahoo Finance chart API historical adjusted-close data. Friday review and close-based rebalance with 0.10% modeled one-way slippage. PSQ has daily-reset inverse behavior; this is a historical ETF simulation, not a theoretical index short.

QQQ/SPY Trend Switch | David's Notes