How to Buy DexCom, Inc. (DXCM) Stock
Compare 15 brokers offering DXCM, check which offer overnight sessions, see options pricing, and confirm OTC tier access.
- Day range
- $82.46 – $83.72
- 52-week range
- $54.11 – $92.59
- Volume
- 795
- Market cap
- $30.94B
Where to buy DXCM
15 brokers in our matrix offer DXCM (penny/OTC-friendly subset). Verify availability and current fees with each broker before trading.
| Broker | Commission | Fractional | Extended | Overnight | Options | OTCQX | OTCQB | Pink Cur. | Pink Ltd. | Grey | Surcharge | Short locate |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 FirstradeReview | $0 | ~4,000+ tickers, ≥ $5 | ~1,200 | $0 | Full | Full | Full | Full | Limited | — | limited | |
 Interactive BrokersReview | $0 (Lite) / per-share (Pro) | ~10,000 | per-contract pricing | Full | Full | Full | Full | Full | Per-share pricing applies | best | ||
 TradeStationReview | $0 listed | $0.50 / $0.60 | Full | Full | Full | Full | Limited | $0.005/share OTC (TS Select/TS Go), $0 up to 10,000 shares | strong | |||
 Charles Schwab (thinkorswim)Review | $0 | Schwab Stock Slices, S&P 500 only, ≥ $5/slice, up to 30 at once | ~1,130 | $0.65 | Full | Full | Full | Limited | Limited | Variable service fees on certain restricted | moderate | |
 E*TRADE (Morgan Stanley)Review | $0 listed | ~20 | $0.65 | Full | Full | Full | Full | Limited | $6.95 flat on penny stocks | moderate | ||
 FidelityReview | $0 | Stocks by the Slice, 7,000+ stocks/ETFs, from $1 | $0.65 | Full | Full | No | No | No | — | limited | ||
 Merrill EdgeReview | $0 | $0.65 | Full | Full | Full | Limited | No | — | none | |||
 MoomooReview | $0 | $0 | Limited | Limited | Limited | No | No | — | limited | |||
 Public.comReview | $0 | rebate model | Limited | Limited | Limited | No | No | — | none | |||
 SoFi Active InvestingReview | $0 | $0 | Full | Limited | Limited | No | No | — | none | |||
 tastytradeReview | $0 stocks | $1.00 open, $0 close (capped at $10 per leg) | Limited | Limited | Limited | No | No | — | limited | |||
 WebullReview | $0 | $0 | Limited | Limited | Limited | No | No | — | limited | |||
 CenterPoint SecuritiesReview | Per-share (day-trader oriented) | per-contract | Full | Full | Full | Full | Full | Per-share | best | |||
 Cobra TradingReview | Per-share (day-trader oriented) | per-contract | Full | Full | Full | Full | Full | Per-share | best | |||
 SpeedTraderReview | Per-share (day-trader oriented) | per-contract | Full | Full | Full | Full | Full | Per-share | best |
24-Hour / Overnight trading
These brokers run an overnight session: Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), Webull, Moomoo, Firstrade. Each publishes its own list of symbols admitted to that session, and those lists are typically limited to large-cap index members. We do not track them per symbol, so check whether DXCMis on your broker’s list before planning an overnight order.
Overnight sessions route through ATSs, typically have wider spreads, accept limit orders only, and offer no guaranteed fills.
Penny stock / OTC routing
DXCM trades on the OTC markets. Broker support varies sharply by tier (OTCQX, OTCQB, Pink Current, Pink Limited, Grey). Fidelity and Robinhood exclude pink/grey entirely. For short-locate on small-caps, Interactive Brokers and the day-trader specialists (Cobra Trading, SpeedTrader, CenterPoint) have the deepest inventory.
Tokenized & CFD/Perp equivalents
DXCM has on-chain equivalents traded 24/7 internationally. Not available to US residents. Full breakdown of what you actually own →
- Kraken xStocksSymbol
DXCMx· tokenized-1to1 · non-US / non-EEA
Synthetic exposure carries no shareholder rights, may be subject to leverage, and is geo-restricted. See full disclaimer.
About DexCom, Inc.
- Sector
- SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
- Employees
- 11,100
- Headquarters
- SAN DIEGO, CA
- Listed
- 2005-04-14
- Market cap
- $30.94B
Frequently asked
Where can I buy DexCom, Inc. (DXCM)?
DXCM is offered by 15 brokers in our matrix, including Firstrade, Interactive Brokers, TradeStation, Charles Schwab (thinkorswim), E*TRADE (Morgan Stanley). Compare commissions, fractional eligibility, and overnight availability in the broker matrix above.
Can I buy DXCM after hours or overnight?
Most brokers in the matrix support pre-market (4 AM–9:30 AM ET) and after-hours (4–8 PM ET) sessions. A true overnight session is offered by Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), and others, but each admits only its own list of symbols — usually large-cap index members — so confirm DXCM is eligible with your broker. Overnight sessions route through ATSs with wider spreads and limit orders only.
Does Robinhood offer DXCM?
No. Robinhood does not provide access to the OTC tier DXCM trades on. Interactive Brokers, TradeStation, and Firstrade have the broadest OTC coverage.
Does Fidelity offer DXCM?
Partial. Fidelity's OTC access is tier-limited — see the OTC columns in the matrix to check whether DXCM's specific tier is supported.
Does Webull offer DXCM?
Partial. Webull's OTC access is tier-limited — see the OTC columns in the matrix to check whether DXCM's specific tier is supported.
Is DXCM optionable?
Yes. DXCM has listed options contracts. Per-contract pricing varies by broker — see the Options column in the matrix.
Is there a tokenized version of DXCM?
Yes — DXCM has tokenized or synthetic equivalents on Kraken xStocks. These are not available to US residents and carry their own risk profile, including leverage and no shareholder rights.
Can I buy a fractional share of DXCM?
9 brokers in the matrix offer fractional shares, but each restricts the feature to its own symbol universe — Schwab to the S&P 500, Robinhood to stocks above a market-cap floor, Fidelity to a 7,000-name list. Check the Fractional column above for each broker's scope and minimum, then confirm DXCM qualifies.
Related reading
Background on the trading features that apply to DXCM.