How to Buy NPK International Inc. (NPKI) Stock

Where to buy NPKI

13 brokers in our matrix offer NPKI. 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

NPKI 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 NPK International Inc.

NPK International Inc is a temporary worksite access solutions company that manufactures, sells, and rents recyclable composite matting products, along with a full suite of services, including planning, logistics, and site restoration. The company generates majority of revenue from the rental of recyclable composite matting systems, along with related site construction and services to customers in various markets including power transmission, oil and natural gas exploration and production, pipeline, renewable energy, petrochemical, construction and other industries within the United States and United Kingdom. It generates maximum revenue from United States.

Sector

SERVICES-MISCELLANEOUS EQUIPMENT RENTAL & LEASING

Employees

510

Headquarters

THE WOODLANDS, TX

Listed

1990-09-06

Market cap

$1.31B

Frequently asked

Where can I buy NPK International Inc. (NPKI)?

NPKI 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 NPKI after hours or overnight?

Yes. NPKI 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 NPKI?

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

Does Fidelity offer NPKI?

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

Does Webull offer NPKI?

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

Is NPKI optionable?

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

Is there a tokenized version of NPKI?

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 NPKI?

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