Last Quote (NBBO)

Get the most recent NBBO (National Best Bid and Offer) quote for a stock. Returns current bid and ask prices with sizes and exchange information.

Use Case: Show real-time bid-ask quotes on trading screens and calculate current spreads for order entry.

GET /v1/stocks/last-quote

Get Last Quote (NBBO)

cURL

curl --request GET \
  --url https://api.aries.com/v1/stocks/last-quote \
  --header 'Authorization: Bearer <token>'

200

{
  "requestId": "ff0cd7f98ace500f3dffce9416765d90",
  "results": {
    "askPrice": 271.1,
    "askSize": 600,
    "ticker": "AAPL",
    "askExchange": 21,
    "indicators": [
      604
    ],
    "bidPrice": 270.96,
    "sequenceNumber": 88394647,
    "bidSize": 100,
    "sipTimestamp": 1767401938487914800,
    "bidExchange": 12,
    "participantTimestamp": 1767401938487902500,
    "tape": 3
  },
  "status": "DELAYED"
}

Authorizations

Authorization · string · header · required

OAuth2 Bearer token: obtain an access token from the token endpoint and send it in the Authorization header.

Query Parameters

ticker · string · required

Stock ticker symbol

Example:

"AAPL"

Response

200

application/json

Successful response

requestId · string

Unique request ID

results · object

Last NBBO quote object

Show child attributes

status · string

Status of the response