Ferroglobe Plc (GSM) Historical Volatility

Tracking GSM historical volatility helps you see how much Ferroglobe Plc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, Ferroglobe Plc's HV tells you what really happened. Use our scanner to monitor GSM 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The GSM 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Ferroglobe Plc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

Ferroglobe PLC operates in the silicon and specialty metals industry in the United States, Europe, and internationally. It provides silicone chemicals that are used in a range of applications, including personal care items, construction-related products, health care products, and electronics, as well as silicon metal for primary and secondary aluminum producers; silicomanganese, which is used as deoxidizing agent in the steel manufacturing process; and ferromanganese that is used as a deoxidizing, desulphurizing, and degassing agent in the removal of nitrogen and other harmful elements from steel.

The company also offers ferrosilicon products that are used to produce stainless steel, carbon steel, and various other steel alloys, as well as to manufacture electrodes and aluminum; calcium silicon, which is used in the deoxidation and desulfurization of liquid steel, and production of coatings for cast iron pipes, as well as in the welding process of powder metal and in pyrotechnics; and nodularizers and inoculants, which are used in the production of iron. In addition, it provides silica fume, a by-product of the electrometallurgical process of silicon metal and ferrosilicon. Further, the company operates quartz mines in Spain, South Africa, the United States, and Canada; and low-ash metallurgical coal mines in the United States, as well as holds interests in hydroelectric power plant in France. It serves silicone chemical, aluminum, and steel manufacturers; auto companies and their suppliers; ductile iron foundries; manufacturers of photovoltaic solar cells and computer chips; and concrete producers. The company was formerly known as VeloNewco Limited and changed its name to Ferroglobe PLC in December 2015. The company was incorporated in 2015 and is headquartered in London, the United Kingdom. Ferroglobe PLC is a subsidiary of Grupo Villar Mir, S.A.U.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts Ferroglobe Plc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where GSM HV is running hot, cold, or in line. Make the GSM 30 day historical volatility — and every other window — work for your edge instead of against it.