How to Buy Arthur J. Gallagher & Co. (AJG) Stock
Compare 13 brokers offering AJG, check which offer overnight sessions, see options pricing, and compare fractional-share terms.
- Day range
- $225.88 – $232.14
- 52-week range
- $190.75 – $313.55
- Volume
- 1.13M
- Market cap
- $59.24B
Where to buy AJG
13 brokers in our matrix offer AJG. Verify availability and current fees with each broker before trading.
| Broker | Commission | Fractional | Extended | Overnight | Options | OTC access |
|---|---|---|---|---|---|---|
 Charles Schwab (thinkorswim)Review | $0 | Schwab Stock Slices, S&P 500 only, ≥ $5/slice, up to 30 at once | ~1,130 | $0.65 | Most (3/5) | |
 E*TRADE (Morgan Stanley)Review | $0 listed | ~20 | $0.65 | Most (4/5) | ||
 FidelityReview | $0 | Stocks by the Slice, 7,000+ stocks/ETFs, from $1 | $0.65 | Partial (2+0) | ||
 FirstradeReview | $0 | ~4,000+ tickers, ≥ $5 | ~1,200 | $0 | Most (4/5) | |
 Interactive BrokersReview | $0 (Lite) / per-share (Pro) | ~10,000 | per-contract pricing | Full | ||
 Merrill EdgeReview | $0 | $0.65 | Most (3/5) | |||
 MoomooReview | $0 | $0 | Limited only | |||
 Public.comReview | $0 | rebate model | Limited only | |||
 RobinhoodReview | $0 | ≥ $1 stocks, market cap ≥ $25M | ~1,134 | $0 | None | |
 SoFi Active InvestingReview | $0 | $0 | Partial (1+2) | |||
 tastytradeReview | $0 stocks | $1.00 open, $0 close (capped at $10 per leg) | Limited only | |||
 TradeStationReview | $0 listed | $0.50 / $0.60 | Most (4/5) | |||
 WebullReview | $0 | $0 | Limited only |
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 AJGis 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.
Tokenized & CFD/Perp equivalents
AJG has on-chain equivalents traded 24/7 internationally. Not available to US residents. Full breakdown of what you actually own →
- Kraken xStocksSymbol
AJGx· 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 Arthur J. Gallagher & Co.
- Sector
- INSURANCE AGENTS, BROKERS & SERVICE
- Employees
- 72,000
- Headquarters
- ROLLING MEADOWS, IL
- Listed
- 1984-06-20
- Market cap
- $59.24B
Frequently asked
Where can I buy Arthur J. Gallagher & Co. (AJG)?
AJG is offered by 13 brokers in our matrix, including Charles Schwab (thinkorswim), E*TRADE (Morgan Stanley), Fidelity, Firstrade, Interactive Brokers. Compare commissions, fractional eligibility, and overnight availability in the broker matrix above.
Can I buy AJG 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 AJG is eligible with your broker. Overnight sessions route through ATSs with wider spreads and limit orders only.
Does Robinhood offer AJG?
Yes. Robinhood offers AJG as a regular exchange-listed security.
Does Fidelity offer AJG?
Yes. Fidelity offers AJG as a regular exchange-listed security.
Does Webull offer AJG?
Yes. Webull offers AJG as a regular exchange-listed security.
Is AJG optionable?
Yes. AJG has listed options contracts. Per-contract pricing varies by broker — see the Options column in the matrix.
Is there a tokenized version of AJG?
Yes — AJG 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 AJG?
10 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 AJG qualifies.
Related reading
Background on the trading features that apply to AJG.