DXCM
DexCom, Inc.
Stand aside — insiders are net sellers — net purchase ratio -1.00 over the last 180 days (5 selling vs 0 buying). No insider purchase offsets the selling; this is one-way selling.
Early Trend Expansion
XLV
sector confirmed
1 insider(s)
net purchase ratio -1.00
buy date unknown
64
conviction / 100
-0.3 since 26 Aug
80.6
technical / 100
$0–$0
No trade / watch only · Hard gate breached.
Regime clarity17.5
Sponsorship / positioning14.0
Volatility behaviour20.0
Catalyst alignment (insider)0.0
Cross-asset confirmation13.0
Stand aside — hard gate breached
- Insiders are net sellers — net purchase ratio -1.00 over the last 180 days (5 selling vs 0 buying). No insider purchase offsets the selling; this is one-way selling.
Last
90.10
Add above
92.59
Cut below
69.79
50DMA
78.85
200DMA
69.95
DXCM — daily, 14 months
XLV — sector ETF, daily, 14 months
Pillar detail, thesis support and invalidation
Regime clarity
What strengthens the thesis
- price above 200DMA
- 200DMA rising
- 50DMA rising
- higher highs and higher lows
- efficiency ratio 0.17
- OBV 50d slope +0.269 avg-daily-volumes/bar
- no OBV divergence at highs
- OBV fell through last pullback
- last pullback 5.3% deep
- no wide downside expansion bars (30d)
- ATR contracting vs 20d mean
- single insider — no cluster
- net purchase ratio -1.00 (0 buying vs 5 selling)
- insiders are NET SELLERS over the window
- NO CFO purchase in the window — the CFO-specific terms score zero
- no CFO buy to date — recency not scored
- closest sector ETF: XLV
- XLV above rising 200DMA (sector-led)
- XLV vs SPY 6m: -2.0 pts
- stock vs XLV RS (3m/6m avg): +10.4 pts
- A confirmed higher high above 92.59 on expanding OBV.
- Pullbacks that hold the rising 50DMA with flat-to-rising OBV.
- XLV extending its own trend while the stock holds relative strength.
- Continued base-building above the reclaimed 200DMA without volatility expansion.
- Loss of the rising 50DMA (78.85) with expanding volatility — reduce.
- Breakdown below the prior structural base (69.79) — exit, no averaging down.
- OBV divergence during a price acceleration — reduce.
- Sector ETF losing its own 200DMA — remove capital regardless of stock behaviour.
- CFO: —
- 0 CFO purchase(s), — total; last filed
- Market cap $34,000,203,776 · 20d avg dollar volume $475,606,961
Insiders are NET SELLERS. The CFO purchase is contradicted.
| Open-market purchases | $0 |
| Open-market sales | $10,533,698 |
| Sales after option exercise | $0 |
| Distinct buyers / sellers | 0 / 5 |
| Net purchase ratio | -1.00 |
| Net purchase ratio, excl. option-exercise sales | -1.00 |
7 material events; 3 taken well, 0 badly; last earnings 30 Jul: neutral (-0.8%).
| Session | Filing | Event | Gap | Day | vs SPY | Vol | +5d | Read |
|---|---|---|---|---|---|---|---|---|
| 30 Jul 26 | 8-K · earnings | Results of operations (earnings) | -1.6% | -0.8% | -2.5% | 1.3x | +11.4% | Neutral |
| 30 Jul 26 | 10-Q | Quarterly report | -1.6% | -0.8% | -2.5% | 1.3x | +11.4% | Neutral |
| 28 May 26 | 8-K | Material event | -0.2% | +3.0% | +2.4% | 0.8x | +0.3% | Rewarded |
| 15 May 26 | 8-K | Regulation FD disclosure; Other material event | +3.6% | +6.6% | +7.8% | 2.1x | +17.0% | Neutral |
| 30 Apr 26 | 8-K · earnings | Results of operations (earnings) | +0.6% | +3.5% | +2.5% | 1.3x | +2.3% | Rewarded |
| 30 Apr 26 | 10-Q | Quarterly report | +0.6% | +3.5% | +2.5% | 1.3x | +2.3% | Rewarded |
| 02 Mar 26 | 8-K | Director or officer change | -1.4% | +0.5% | +0.4% | 0.7x | -6.8% | Neutral |