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Costco

COST · United States · home listing

$920.00

Teaching path · feed quiet · session quiet

Prev: $920.00
Open: $920.00
High: $920.00
Low: $920.00
52w high: $920.00
52w low: $920.00
Volume: 0
Vs 52w high: —
RSI 14: —

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Graph will fill when delayed bars arrive.

Teaching path · linear, 1D. Axis follows last. Classroom chart — not a licensed terminal.

DYOR

Research lives on DYOR

Last, the chart, and the news stay free here. What it is, what they do, how long, a paper, and the five questions sit on DYOR. One first look. Then sign in.

Open DYOR for this name

Your note

A sentence for you. Not a fill.

What you would tell a careful adult about this name. Stays on this device. Do not paste a seed.

DYOR

Learn Costco

Same classroom curve on every name — from a first look to a filing. Not a pitch. Not advice.

1 / 5
What this is
A large U.S. warehouse retailer. Membership and volume sit in the story. Look at delayed last. You cannot buy here.
2 / 5
A slice of a business
COST is a share — a small claim on a real company. The company does not owe you a profit because you own it. Last is only the last agreed trade.
3 / 5
Last is a print
The number here is delayed public last when the feed is up, or a teaching path on the practice tape. It is not a live ticket. Hours matter: many shares sleep when their floor is closed.
4 / 5
Size for a drop
Ask: if Costco is worth 20% less next month, can you leave the cash alone? If not, the paper size is too big. We will not tell you to buy it.
5 / 5
Learn more
Star COST if you want it on Favorites. Paper-trade only on the practice tape. Ask the Professor what a word means. Longer paths live under Learn.

Longer path: Open the path. Or ask the Professor in your own words. No buy or sell advice.

Look only

This is delayed public last. Paper fills live on the desk, at a rounded teaching last — not this print. Look. Do not buy.

Paper-fill on the desk

Time & sales

Teaching time and sales — this name has no public delayed feed.

Session quiet.

Set an alert

Tap Set alert. The bell on this device rings when delayed last crosses that number. Not a broker ping. Not advice.

Last $920.00. Delayed. Paper only.

On the floor

Public notes about this practice name. Follow writers, watch the room, tag $COST.

Join the floor

Read freely. To post, follow, or watch a room, sign in with Google, X, or email. Notes are public opinions about a practice tape — not investment advice. The clerk reads every note.

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Peers on this tape

Options chain

A teaching chain. Premium is a Black–Scholes number on the practice last, times 100 paper shares. Bid and ask are a teaching spread. Not a live OCC book. We do not sell options.

Underlier last $920.00 · teaching expiry 2026-10-13 · 11 strikes · 5 expiries · 11 rungs · 100×

Teaching options chain. Call last, strike, put last on a phone. Greeks on a wider desk.
Call	Call					Strike	Put	Put
Last	Δ	IV	OI	Vol		Vol	OI	IV	Δ	Last
	0.77	28%	10.3K	2.61K	895	3.24K	2.89K	28%	-0.23
	0.72	28%	6.84K	2.8K	900	5.14K	22.9K	28%	-0.28
	0.68	28%	19.8K	262	905	4.28K	1.83K	28%	-0.32
	0.63	28%	20.5K	4.59K	910	5.01K	16.3K	28%	-0.37
	0.59	28%	23K	2.46K	915	3.46K	14.5K	28%	-0.41
	0.54	28%	30.8K	7.73K	920 ATM	4.9K	31.9K	28%	-0.46
	0.50	28%	16.3K	3.39K	925	2.2K	1.66K	28%	-0.50
	0.46	28%	17.6K	1.45K	930	2.65K	14.3K	28%	-0.54
	0.41	28%	7.5K	947	935	2.58K	21.3K	28%	-0.59
	0.37	28%	13.8K	3.24K	940	1.52K	14K	28%	-0.63
	0.32	28%	23.8K	794	945	969	3K	28%	-0.68

Hypothetical options. CFTC Rule 4.41. We do not sell contracts.

Options path

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