Hmm. Witching day. Four contracts expiring at once, index funds forced to buy and sell by the close, and passive money sloshing around like ale at a Novigrad tavern on payday. If you've ever wondered why certain stocks spike or dump for no apparent fundamental reason on the third Friday of March, June, September, and December — this is why. The indices are reshuffling their decks, and the funds that track them have no choice but to follow.
Today, March 20th 2026, is one of those days. STOXX Europe 600, FTSE 100, MDAX, MSCI Europe, and more are all implementing changes simultaneously. That's a lot of forced buying and selling. The actual effective date for most changes is Monday March 23rd at the open, which means the rebalancing trades happen today at the close. If you see unusual volume or price action in any of the names below, now you know why.
How This Works
When a stock gets added to a major index, every ETF and index fund tracking that index must buy shares. That's forced demand — not because someone likes the company, but because the rules say so. Conversely, when a stock gets deleted, those same funds must sell. It's mechanical. Predictable. And if you know it's coming, potentially useful.
The magnitude of the flow depends on the index. Getting added to the STOXX Europe 600 means billions in passive assets need to find room for you. Getting kicked out means billions in forced selling. FTSE 100 changes are similarly heavy. MSCI moves the most money globally. Even MDAX changes matter for German-focused funds.
Now, before you get excited — none of this is a secret. Index providers announce these changes roughly two weeks before the effective date. STOXX published the Europe 600 changes on March 2nd. FTSE Russell's indicative list came out in late February. By now, every fund manager, every quant desk, and every semi-attentive trader with a Bloomberg terminal knows exactly what's happening. The edge isn't in knowing the changes. It's in understanding the flow — how much is left to trade, when the bulk of it hits, and which names are crowded enough that the mechanical pressure still moves the price despite everyone seeing it coming.
"People call these things monsters. But the real monsters are the ones who sell because a spreadsheet told them to."
A stock can appear in multiple changes simultaneously — Hikma Pharmaceuticals, for instance, is being removed from both the FTSE 100 and MSCI UK today. That's a double hit of forced selling. Worth watching.
The Changes
Below are all confirmed index changes taking effect this week, organized by market. Symbols marked with IN are being added; those marked OUT are being removed. Click a market to expand.
London (LO) — 9 changes across 3 indices
| Symbol | Company | Direction | Index |
|---|---|---|---|
| IGG | IG Group | IN | FTSE 100 |
| BGEO | Lion Finance Group | IN | FTSE 100 |
| EZJ | easyJet | OUT | FTSE 100 |
| HIK | Hikma Pharmaceuticals | OUT | FTSE 100 MSCI UK |
| PAF | Pan African Resources | IN | STOXX 600 |
| HOC | Hochschild Mining | IN | STOXX 600 |
| AAF | Airtel Africa | IN | MSCI UK |
| DCC | DCC plc | OUT | MSCI UK |
| GFTU | Grafton Group | OUT | STOXX 600 |
| GRG | Greggs | OUT | STOXX 600 |
| SCT | Softcat | OUT | STOXX 600 |
⚠ HIK faces forced selling from two indices simultaneously — FTSE 100 and MSCI UK.
Frankfurt (DE) — 4 changes
| Symbol | Company | Direction | Index |
|---|---|---|---|
| AIXA | Aixtron SE | IN | STOXX 600 |
| SHA | Schaeffler AG | IN | MDAX |
| DWNI | Deutsche Wohnen | OUT | MDAX |
| EIN2 | Einhell Germany | IN | SDAX |
Milan (MI) — 6 changes across 2 indices
| Symbol | Company | Direction | Index |
|---|---|---|---|
| TPRO | Technoprobe | IN | STOXX 600 |
| PIRC | Pirelli & C. | IN | STOXX 600 |
| IG | Italgas | IN | MSCI Italy |
| INW | INWIT (Infrastrutture Wireless) | IN | MSCI Italy |
| AMP | Amplifon | OUT | STOXX 600 |
| TIT | Telecom Italia | OUT | MSCI Italy |
| NEXI | Nexi | OUT | MSCI Italy |
Paris (PA) — 3 changes
| Symbol | Company | Direction | Index |
|---|---|---|---|
| AYV | Ayvens | IN | MSCI France |
| ATE | Alten S.A. | OUT | STOXX 600 |
| RF | Eurazeo | OUT | STOXX 600 |
| EDEN | Edenred | OUT | MSCI France |
| FDJU | FDJ (La Française des Jeux) | OUT | MSCI France |
Warsaw (PL) — 4 additions
| Symbol | Company | Direction | Index |
|---|---|---|---|
| ING | ING Bank Slaski | IN | STOXX 600 |
| TPE | Tauron Polska Energia | IN | STOXX 600 |
| ZAB | Zabka Group | IN | STOXX 600 |
| BFT | Benefit Systems | IN | STOXX 600 |
Four Polish names entering STOXX 600 at once — the biggest single-country gain this rebalance.
Amsterdam (AS) — 2 changes
| Symbol | Company | Direction | Index |
|---|---|---|---|
| CSG | CSG N.V. (Defense) | IN | STOXX 600 |
| IMCD | IMCD Group | OUT | MSCI Netherlands |
Stockholm (ST) — 3 changes
| Symbol | Company | Direction | Index |
|---|---|---|---|
| HPOL-B | Hexpol AB | OUT | STOXX 600 |
| KINV-B | Kinnevik AB | OUT | STOXX 600 |
| VERI | Verisure | IN | MSCI Sweden |
Zurich (CH) — 3 changes
| Symbol | Company | Direction | Index |
|---|---|---|---|
| VATN | Valiant Holding | IN | STOXX 600 |
| TECN | Tecan Group | OUT | STOXX 600 |
| AMRZ | Amrize | OUT | STOXX 600 |
Brussels (BR) — 1 change
| Symbol | Company | Direction | Index |
|---|---|---|---|
| AZE | Azelis Group | OUT | STOXX 600 |
Madrid (MA) — 1 change
| Symbol | Company | Direction | Index |
|---|---|---|---|
| IDR | Indra Sistemas | IN | MSCI Spain |
Vienna (VI) — 1 change
| Symbol | Company | Direction | Index |
|---|---|---|---|
| BG | BAWAG Group | IN | MSCI Austria |
What to Watch
A few names to keep an eye on today:
HIK (Hikma) — double deletion from FTSE 100 and MSCI UK. That's two waves of passive selling hitting the same stock. If you see it dumping into the close with no news, this is the news.
Polish stocks (ING, TPE, ZAB, BFT) — four names entering the STOXX 600 simultaneously. That's an unusual concentration of forced buying in a single market. Poland's been quietly getting too big to ignore.
Gold miners (PAF, HOC) — entering STOXX 600 as the sector's outperformance finally gets recognized by the index committee. When the indices start adding you, the trend is mature. Doesn't mean it's over, but the easy money's been made.
CSG (defense) — another sign of the European defense rerating getting baked into the indices. Defense used to be a niche sector. Now it's mainstream enough for the STOXX 600.
DWNI (Deutsche Wohnen) — removed from MDAX because free float dropped below 10%. That's not a routine rebalance — that's a structural change. Schaeffler (SHA) takes its spot.
TIT (Telecom Italia) and NEXI — both dropped from MSCI Italy, replaced by utility (Italgas) and infrastructure (INWIT). The Italian index is pivoting from old telco and payments to boring-but-steady infrastructure plays.
"Hmm. Rebalancing days. The market pretends it's business as usual, but underneath, billions are being shuffled by machines following rules written by committees. Not unlike the Wild Hunt, really. Except with better spreadsheets."
Wind's howling. Trade accordingly.