Section 2 · Prices

The price columns

Four columns describe price: what last traded, how it moved, and what buyers and sellers are quoting now.

Sample Indexspot 4,865.00previous close 4,851.00expiry in 14 dayslot 45 unitsall figures invented

CallsPuts
LTPChngBidAskStrikeAskBidChngLTP
call in the money173.05+11.15172.70173.404,7008.407.70−2.858.05
call in the money130.10+9.60129.80130.404,75015.4014.80−4.4015.10
call in the money91.70+7.7091.5091.904,80026.9026.50−6.3026.70
call in the money59.55+5.6059.4059.654,85044.6544.40−8.4044.55
34.80+3.6034.6534.954,90069.9569.65−10.4069.80put in the money
17.85+2.0017.6018.104,950103.05102.60−12.00102.85put in the money
7.75+0.857.458.055,000143.05142.45−13.15142.75put in the money
2.75+0.302.403.105,050188.10187.40−13.70187.75put in the money

Excerpt: the four price columns on each side.

On a narrow screen this table scrolls sideways; the strike column is in the middle.

LTP: last traded price

The premium of the most recent trade, per unit of the underlying. One lot of the specimen is 45 units, so the 4,850 call at 59.55 costs 59.55 × 45 = 2,679.75 a lot, before charges.

LTP is history: it says what the last buyer and seller agreed, which may have been some time ago on a quiet strike.

Chng: change since the previous close

LTP minus the previous session's closing price. The 4,850 call's previous close in the specimen was 53.95; 59.55 − 53.95 = +5.60. With the invented index up from 4,851.00 to 4,865.00, every call in the specimen rose and every put fell.

Bid, ask and the spread

The bid is the best price a buyer is currently offering; the ask is the best price a seller is asking. A trade happens when one side accepts the other's price. The gap is the spread.

bid 59.40ask 59.65LTP 59.55
The 4,850 call: spread 0.25.

In the specimen the spread widens away from spot: 0.25 at 4,850, 0.70 at 5,050. Buying at the ask and selling at the bid straight away would cost the spread. A chain can also show the quantity waiting at the bid and ask; the specimen leaves those columns out.