ScalperSense Why
Why ScalperSense

NSE publishes 273 strikes.
You need one sentence.

Every number here is public — NSE and BSE give it away. The work was never getting the data, it's the arithmetic between the data and a decision: which strikes are walls, where the writers moved, whether today's implied volatility is dear. ScalperSense does that part and writes the answer as a sentence. A server watches the session on its own clock, so the page is already warm when you open it.

What it does

Numbers in, a reading out

3 of them, all session
CE 24600 OI 1.36 Cr Δ -3,965 PE 24600 OI 1.44 Cr Δ +5.06 L PCR 0.92 MAXPAIN 24,600 IV 10.8% STRADDLE 250

Where the option chain is leaning

Six readings computed off the live chain: max pain, the ATM straddle's expected move with both breakevens, PCR, the strikes carrying the most put and call OI, and a buildup verdict that weighs each near-ATM strike's writing and covering into one bullish or bearish call. The five biggest OI walls are numbered right in the table.

Option Chain →
09:15 24,641 vwap 24,638 10:42 24,619 or.lo 24,604 14:09 24,653 vwap 24,633 samples 126/day × 4 indices

Whether there's a trade right now

Today's tape read against VWAP and the opening range for the four NSE indices and BSE's SENSEX and BANKEX. It re-fetches the live chain on every run and answers with entry, stop, target and the index move needed — or says "no trigger, wait", which it does often.

Scalper Pro →
universe ~100 symbols history 400 sessions each built 16:10 IST, after the close breadth 202 adv / 293 dec

What the rest of the market did

A written verdict on the session, with the day drawn on a real clock — first print, high, low, close. Then sector strength, the movers, who was buying, and the results calendar that explains tomorrow's gaps.

Highlights →
What's in it

Fourteen places to look

all free · no account
Markets
⛓️Option Chain NIFTY, BANKNIFTY, FINNIFTY and MIDCPNIFTY by strike, with Black-Scholes Greeks, a traded-volume heatmap and the OI walls marked. Refreshes itself every 45 seconds while the market is open. 🏛️BSE Chain The same reading for BSE — SENSEX and BANKEX. 🌊OI & IV Flow Pick a strike and see its call and put OI, volume and PCR across the whole day, sampled every three minutes. Plus IV rank, and alerts you can set on PCR or an OI surge.
Market Intel
☀️Today's Highlights A written verdict on the day, and the Session Spine — the session drawn on a real clock with the first print, high, low and close pinned where they happened. 🌅Pre-Market The nine o'clock ritual on one screen: GIFT Nifty's implied gap, overnight global indices, commodities and currencies. 📰News Six categories from publisher RSS — markets, India, world, technology, sport, entertainment — with the full article opening beside the list, not in a new tab. 💹FII / DII Provisional FII and DII cash-market net figures, plus participant-wise open interest — who is actually positioned where. 🗓️Events / Results Results, dividends and board meetings from NSE's corporate calendar, filterable down to the stocks you actually hold. 🚀IPO Hub Open, upcoming and recently closed issues with live subscription by category — QIB, NII, retail — and a plain description of what the business does.
Research
📈Stock Screener One search over the full NSE list gives both answers at once: the live quote with market depth, and the technical read — delivery, volume, signals, index membership. ⭐Top Picks Six views — live movers and sector strength, plus intraday, short-term, long-term and penny rankings rebuilt after each close. ★Watchlist Your holdings with live prices, running P/L and price alerts. Kept in your browser, not on our server.
Toolkit
⚡Scalper Pro The flagship. Reads today's tape against VWAP and the opening range and commits to one plan — entry, stop, target — or tells you to wait. 🧮Tools Payoff builder with net Greeks, breakevens and probability of profit, an F&O journal, and the Zero Hero scanner. 📋Cheat Sheet The conviction table: what price, OI and volume mean together — long buildup, short covering, unwinding and the rest. 📚Learn 109 terms across ten categories, each with a worked example in rupees. Type / anywhere to search it.
How to use it

A day, start to finish

IST · Mon–Fri
08:00 Before the bell

Find out where you're opening

Pre-Market reads the GIFT Nifty gap and overnight global cues. Events tells you which of your stocks report today — the single most common reason a position gaps against you.

09:15 The open

Let the first range form, then look

Scalper Pro needs the opening range before it will commit, and says so rather than inventing a signal. Meanwhile the Option Chain shows where writers are placing their bets for the expiry.

11:00 Mid-session

Watch what's being added, not just the price

OI Flow is the one that rewards patience — a level holding while puts are written into it means something different from the same level holding on thin volume.

15:30 After the close

Read the day back, and set up tomorrow

Highlights summarises the session; FII / DII says who was behind it. Top Picks rebuilds itself at 16:10 on the day's final closes, so it's waiting for you tomorrow.

What it isn't

The honest part

Not investment advice Nothing here is a recommendation to buy or sell. It is market data with the arithmetic done for you. We are not SEBI-registered, and every decision stays yours.
Not a broker or a terminal You cannot place an order here, and there's nothing to connect. Read the market here, trade at your broker.
Not tick-by-tick Data comes from NSE and BSE's own public feeds and is cached for seconds to minutes depending on the page. Fine for reading structure; wrong for arbitrage.
Not a track record Signals are rules applied to today's data, not results from a tested strategy. F&O is leveraged — most retail participants lose money at it.

Start with the chain

No sign-up, no trial, nothing to install. Open it during market hours and it's already warm — the server has been watching since eight.

Open the Option Chain Try Scalper Pro