Resources · Investing
Free Data for Traders: Filings, Releases and Calendars at the Source
Many of the most useful trader resources are free, because the agencies and exchanges that produce market data publish it themselves, with filings, releases and calendars kept at the source.
Short answer
The core free sources are SEC EDGAR for filings, FINRA for broker checks and short interest, the Federal Reserve and FRED for rates and economic series, the BLS and BEA for inflation, jobs and GDP releases, Treasury for daily yields, Cboe and the OCC for volatility and options rules, and the IRS, SSA and Medicare.gov for taxes and retirement.
A headline says a CEO sold a large block of shares. The Form 4 behind it, filed with the SEC, may show a transaction code for a sale under a trading plan set up months earlier, or shares withheld to cover taxes on vested stock. Those are routine. The headline and the filing describe one event. They mean different things. The filing is free.
Most market data starts at a public institution. Commercial sites repackage it, which saves time, and when two of them disagree about a date, a filing or a figure, the agency or exchange that produced it is the one whose version counts, so it pays to know where each original lives.
Company filings and investor protection
| Source | What it is | What a trader uses it for | How often it updates |
|---|---|---|---|
| SEC EDGAR | The SEC’s database of company filings | 10-K annual reports, 10-Q quarterly reports, 8-K event reports (including earnings results), Form 4 insider trades, 13F institutional holdings | As filings arrive, through each business day |
| Investor.gov | The SEC’s investor education site | Plain explanations of products and fees, fraud alerts, a search for registered professionals | As new material is published |
| FINRA BrokerCheck | FINRA’s registry of brokers and firms | A broker’s registration, employment history and disciplinary record | As firms and regulators file updates |
| SIPC | The Securities Investor Protection Corporation | What happens to your cash and securities if a member brokerage fails | Rules change rarely; check the limits on its site |
SIPC protection covers missing assets when a firm fails. It does not cover losses from falling prices.
Market data from regulators and exchanges
| Source | What it is | What a trader uses it for | How often it updates |
|---|---|---|---|
| FINRA short interest data | Short positions reported by member firms | Gauging crowded shorts before a possible short squeeze | Twice a month, on a published schedule |
| Cboe VIX methodology | Cboe’s published description of how the VIX is calculated from S&P 500 option prices | Understanding what the VIX measures and what it leaves out | Revised when the methodology changes |
| OCC options education and rules | Material from the Options Clearing Corporation, including the options disclosure document | Exercise, assignment and contract adjustment rules | As rules and documents are revised |
Rates and economic releases
| Source | What it is | What a trader uses it for | How often it updates |
|---|---|---|---|
| Federal Reserve | The FOMC meeting calendar, statements and minutes | Knowing when rate decisions land and what the committee said | Statements at each meeting; minutes several weeks later |
| FRED | Economic data series from the Federal Reserve Bank of St. Louis | Charting and downloading rates, inflation, employment and many other series | When each source agency releases |
| BLS release calendar | The Bureau of Labor Statistics schedule | Dates and times for CPI and the monthly jobs report | Calendar published ahead; data monthly |
| BEA | The Bureau of Economic Analysis | GDP estimates and the PCE price index | GDP quarterly with revisions; PCE monthly |
| Treasury daily yield curve rates | Treasury’s published yields across maturities | Tracking the curve, comparing a dividend yield with a risk-free rate | Each business day |
| TreasuryDirect | Treasury’s site for buying securities directly | Buying bills, notes, bonds and savings bonds without a broker | Auction schedule posted ahead |
The release time matters as much as the date. A CPI report published before the open can move index futures and gap your positions, so a trader who holds overnight into a scheduled release has chosen to carry that event risk whether or not the trade plan says so.
Taxes and retirement
| Source | What it is | What a trader uses it for | How often it updates |
|---|---|---|---|
| IRS Publication 550 | Investment income and expenses | Capital gains, wash sales, dividends, the tax treatment of options | Each tax year |
| IRS Publication 590-B | Distributions from IRAs | Withdrawal rules and required minimum distributions | Each tax year |
| Social Security Administration | The “my Social Security” account | Your earnings record and benefit estimates at different claiming ages | Your record updates as earnings are reported |
| Medicare.gov | The official Medicare site | Coverage rules, enrollment periods and plan comparisons | Costs and plans change yearly |
Benefits and income interact. See how Social Security is taxed.
What about screeners, charting sites and calendars?
Commercial tools fill the gaps: stock screeners, charting platforms, earnings calendars and news feeds. Judge one by what it tells you about its own data.
- Where the prices come from and whether quotes are delayed.
- Whether historical charts adjust for splits and dividends, and whether you can turn that off.
- Whether an earnings calendar marks each date as confirmed by the company or estimated from past timing, since an estimated date is a guess that can be off by a week.
- Whether you can export your data if you leave.
A weekly routine at the source
Every weekend, open the BLS release calendar and the Fed’s FOMC calendar and write down any release or meeting in the coming week, with its time. Then search EDGAR for each stock you hold. Read any new 8-K, and check Form 4 filings for open-market purchases by officers. Once a month, compare short interest on your holdings with the prior FINRA report.
The earnings calendar workflow adds report dates to the same weekly routine, and the investing topic page collects related guides.
Questions traders ask next
Where can I find insider buying and selling for free?
On SEC EDGAR. Company officers, directors and large holders report their trades on Form 4, and each filing shows the date, the number of shares, the price and a transaction code. Read the code before reacting: an option exercise or a planned sale is a different signal from an open-market purchase.
How often is short interest data updated?
FINRA collects short positions from its member firms and publishes them twice a month on a set schedule. Because each report reflects positions as of a settlement date some days earlier, short interest is always a little stale by the time you read it, and it can change a lot between reports.
Is FRED data the same as the government releases?
FRED, run by the Federal Reserve Bank of St. Louis, republishes series from the BLS, the BEA, the Fed and other sources, usually shortly after each release. It is convenient for charts and downloads. For the headline figure on release day, and for revision notes, the originating agency's release is the primary document.