How to Buy A.O. Smith Corporation (AOS) Stock

Where to buy AOS

13 brokers in our matrix offer AOS. Verify availability and current fees with each broker before trading.

Broker	Commission	Fractional	Extended	Overnight	Options	OTC access
Charles Schwab (thinkorswim)	$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)	$0 listed			~20	$0.65	Most (4/5)
Fidelity	$0	Stocks by the Slice, 7,000+ stocks/ETFs, from $1			$0.65	Partial (2+0)
Firstrade	$0	~4,000+ tickers, ≥ $5		~1,200	$0	Most (4/5)
Interactive Brokers	$0 (Lite) / per-share (Pro)			~10,000	per-contract pricing	Full
Merrill Edge	$0				$0.65	Most (3/5)
Moomoo	$0				$0	Limited only
Public.com	$0				rebate model	Limited only
Robinhood	$0	≥ $1 stocks, market cap ≥ $25M		~1,134	$0	None
SoFi Active Investing	$0				$0	Partial (1+2)
tastytrade	$0 stocks				$1.00 open, $0 close (capped at $10 per leg)	Limited only
TradeStation	$0 listed				$0.50 / $0.60	Most (4/5)
Webull	$0				$0	Limited only

24-Hour / Overnight trading

AOS may be eligible for overnight trading via Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), Webull, Moomoo, Firstrade. Each broker maintains its own eligibility list — confirm before placing an order.

About A.O. Smith Corporation

A.O. Smith Corp manufactures a broad lineup of water heaters, boilers, and water treatment products. The company has two reporting segments: North America (75% of sales) and the rest of the world (25% of sales). A.O. Smith is the manufacturer of water heaters in North America for the residential and commercial markets, with approximately 37% and 54% market share, respectively. Residential water heaters account for the majority of North American sales and are distributed equally through wholesale and retail channels. The majority of A.O. Smith's international revenue is from China, a market the company entered during the mid-1990s. However, the firm announced a strategic review of its China operations.

Sector

HOUSEHOLD APPLIANCES

Employees

11,500

Headquarters

MILWAUKEE, WI

Listed

1983-09-30

Market cap

$8.01B

Frequently asked

Where can I buy A.O. Smith Corporation (AOS)?

AOS 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 AOS after hours or overnight?

Yes. AOS is on the 24-hour eligibility list for Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), and others. Overnight sessions route through ATSs with wider spreads and limit-orders only.

Does Robinhood offer AOS?

Yes. Robinhood offers AOS as a regular exchange-listed security.

Does Fidelity offer AOS?

Yes. Fidelity offers AOS as a regular exchange-listed security.

Does Webull offer AOS?

Yes. Webull offers AOS as a regular exchange-listed security.

Is AOS optionable?

Yes. AOS has listed options contracts. Per-contract pricing varies by broker — see the Options column in the matrix.

Is there a tokenized version of AOS?

Not in our current dataset. The tokenized stock universe (Kraken xStocks, Binance Alpha/Ondo, Robinhood EU, Hyperliquid HIP-3) is expanding quickly — we refresh quarterly.

Can I buy a fractional share of AOS?

Yes. Multiple brokers in the matrix support fractional shares for AOS — see the Fractional column above for per-broker eligibility and minimums.