Historical index values - NGN Market API

{ "success": true, "data": { "symbol": "NGX30", "format": "detailed", "period": "30d", "count": 3, "statistics": { "start_date": "2026-04-15", "end_date": "2026-04-17", "start_value": 2819.3, "end_value": 2841.45, "change": 22.15, "change_percent": 0.79, "min_value": 2819.3, "max_value": 2841.45, "return_1m": 3.42, "return_3m": 8.17, "return_1y": 24.55, "return_ytd": 11.83 }, "data": [ { "date": "2026-04-15", "timestamp": 1744675200000, "index_value": 2819.3, "normalized_value": 100, "daily_change": 0, "daily_change_percent": 0 }, { "date": "2026-04-16", "timestamp": 1744761600000, "index_value": 2829.88, "normalized_value": 100.38, "daily_change": 10.58, "daily_change_percent": 0.38 }, { "date": "2026-04-17", "timestamp": 1744848000000, "index_value": 2841.45, "normalized_value": 100.79, "daily_change": 11.57, "daily_change_percent": 0.41 } ] }, "meta": { "plan": "starter", "calls_used": 4823, "calls_remaining": 95177, "reset_at": "2026-05-01T00:00:00.000Z" } }

Authorizations

Authorization

string

header

required

Pass your API key as a Bearer token: Authorization: Bearer ngm_live_YOUR_KEY. Generate keys at ngnmarket.com/dashboard/developer.

Path Parameters

symbol

string

required

Index symbol (e.g. NGX30). Case-insensitive.

Example:

"NGX30"

Query Parameters

period

enum<string>

default:30d

Preset lookback window. Ignored when from/to are supplied.

Available options:

7d,

30d,

90d,

1y,

5y,

all

from

string<date>

Start date in YYYY-MM-DD format (inclusive). Takes priority over period.

Example:

"2026-01-01"

string<date>

End date in YYYY-MM-DD format (inclusive). Use with from.

Example:

"2026-04-17"

format

enum<string>

default:detailed

Response shape. detailed returns objects; chart returns compact [timestamp, value] pairs.

Available options:

detailed,

chart

Response

Index chart data retrieved successfully.

success

boolean

required