The silver miners’ stocks have really languished this year, grinding sideways to lower for months on end. This vexing consolidation has fueled near-universal bearishness, leaving silver stocks deeply out of favor. But once a quarter when earnings season arrives, hard fundamentals pierce the obscuring veil of popular sentiment. The silver miners’ recently-reported Q3’17 results reveal today’s silver prices remain profitable.

Four times a year publicly-traded companies release treasure troves of valuable information in the form of quarterly reports. These are generally due by 45 days after quarter-ends in the US and Canada. They offer true and clear snapshots of what’s really going on operationally, shattering the misconceptions bred by the ever-shifting winds of sentiment. There’s no silver-miner data that is more highly anticipated than quarterlies.

Silver mining is a tough business both geologically and economically. Primary silver deposits, those with enough silver to generate over half their revenues when mined, are quite rare. Most of the world’s silver ore formed alongside base metals or gold, and their value usually well outweighs silver’s. So typically in any given year, less than a third of the global mined silver supply actually comes from primary silver mines!

The world authority on silver supply-and-demand fundamentals is the Silver Institute. Back in mid-May it released its latest annual World Silver Survey, which covered 2016. Last year only 30% of silver mined came from primary silver mines, a slight increase. The remaining 70% of silver produced was simply a byproduct. 35% of the total mined supply came from lead/zinc mines, 23% from copper, and 12% from gold.

As scarce as silver-heavy deposits supporting primary silver mines are, primary silver miners are even rarer. Since silver is so much less valuable than gold, most silver miners need multiple mines in order to generate sufficient cash flows. These often include non-primary-silver ones, usually gold. More and more traditional elite silver miners are aggressively bolstering their gold production, often at silver’s expense.

So the universe of major silver miners is pretty small, and their purity is shrinking. The definitive list of these companies to analyze comes from the most-popular silver-stock investment vehicle, the SIL Global X Silver Miners ETF. This week its net assets are running 6.6x greater than its next-largest competitor’s, so SIL really dominates this space. With ETF investing now the norm, SIL is a boon for its component miners.

While there aren’t many silver miners to pick from, major-ETF inclusion shows silver stocks have been vetted by elite analysts. Due to fund flows into top sector ETFs, being included in SIL is one of the important considerations for picking great silver stocks. When the vast pools of fund capital seek silver-stock exposure, their SIL inflows force it to buy shares in its underlying companies bidding their prices higher.

Back in mid-November as the major silver miners finished reporting their Q3’17 results, SIL included 29 “silver miners”. This term is used loosely, as SIL holds plenty of companies which can’t be described as primary silver miners. Most generate well under half their revenues from silver, which greatly limits their stock prices’ leverage to silver rallies. Nevertheless, SIL is today’s leading silver-stock ETF and benchmark.

The higher the percentage of sales any miner derives from silver, naturally the greater its exposure to silver-price moves. If a company only earns 20%, 30%, or even 40% of its revenues from silver, it’s not a primary silver miner and its stock price won’t be very responsive to silver itself. But as silver miners are increasingly actively diversifying into gold, there aren’t enough big primary silver miners left to build an ETF alone.

Every quarter I dig into the latest results from the major silver miners of SIL to get a better understanding of how they and this industry are faring fundamentally. I feed a bunch of data into a big spreadsheet, some of which made it into the table below. It includes key data for the top 17 SIL component companies, an arbitrary number that fits in this table. That’s a commanding sample at 92.7% of SIL’s total weighting.

While most of these top 17 SIL components had reported on Q3’17 by mid-November, not all had. Some of these major silver miners trade in the UK or Mexico, where financial results are only required in half-year increments. If a field is left blank in this table, it means that data wasn’t available by the end of Q3’s earnings season. Some of SIL’s components also report in gold-centric terms, excluding silver-specific data.

In this table the first couple columns show each SIL component’s symbol and weighting within this ETF as of mid-November. While most of these silver stocks trade in the States, not all of them do. So if you can’t find one of these symbols, it’s a listing from a company’s primary foreign stock exchange. That’s followed by each company’s Q3’17 silver production in ounces, along with its absolute year-over-year change.

After that comes this same quarter’s gold production. Pretty much every major silver miner in SIL also produces significant-if-not-large amounts of gold! While gold stabilizes and augments the silver miners’ cash flows, it also retards their stocks’ sensitivity to silver itself. Naturally investors and speculators buy silver stocks and their ETFs because they want leveraged upside exposure to silver’s price, not gold’s.

So the next column reveals how pure the elite SIL silver miners are. This is mostly calculated by taking a company’s Q3 silver production, multiplying it by Q3’s average silver price, and then dividing that by the company’s total quarterly sales. If miners didn’t report Q3 revenues, I approximated them by adding the silver sales to gold sales based on their quarterly production and these metals’ average third-quarter prices.

Then comes the most-important fundamental data for silver miners, cash costs and all-in sustaining costs per ounce mined. The latter determines their profitability and hence ultimately stock prices. Those are also followed by YoY changes. Finally comes the YoY changes in cash flows generated from operations and GAAP profits. But an exception is necessary for companies with numbers that crossed zero since Q3’16.