Code of Federal Regulations > Title 17 > Chapter I > Part 43 > Appendix Appendix F - Appendix F to Part 43—Initial Appropriate Minimum Block Sizes by Asset Class for Block Trades and Large Notional Off-Facility Swaps

Regulations last checked for updates: Apr 04, 2025

Title 17 - Commodity and Securities Exchanges last revised: Mar 24, 2025

Appendix Appendix F - Appendix F to Part 43—Initial Appropriate Minimum Block Sizes by Asset Class for Block Trades and Large Notional Off-Facility Swaps

Currency group	Currencies
Super-Major Currencies	United States dollar (USD), European Union Euro Area euro (EUR), United Kingdom pound sterling (GBP), and Japan yen (JPY).
Major Currencies	Australia dollar (AUD), Switzerland franc (CHF), Canada dollar (CAD), Republic of South Africa rand (ZAR), Republic of Korea won (KRW), Kingdom of Sweden krona (SEK), New Zealand dollar (NZD), Kingdom of Norway krone (NOK), and Denmark krone (DKK).
Non-Major Currencies	All other currencies.

Interest Rate Swaps

Currency group	Tenor greater than	Tenor less than or equal to	50% Notional (in millions)
Super-Major		46 days	6,400
Super-Major	46 days	Three months (107 days)	2,100
Super-Major	Three months (107 days)	Six months (198 days)	1,200
Super-Major	Six months (198 days)	One year (381 days)	1,100
Super-Major	One year (381 days)	Two years (746 days)	460
Super-Major	Two years (746 days)	Five years (1,842 days)	240
Super-Major	Five years (1,842 days)	Ten years (3,668 days)	170
Super-Major	Ten years (3,668 days)	30 years (10,973 days)	120
Super-Major	30 years (10,973 days)		67
Major		46 days	2,200
Major	46 days	Three months (107 days)	580
Major	Three months (107 days)	Six months (198 days)	440
Major	Six months (198 days)	One year (381 days)	220
Major	One year (381 days)	Two years (746 days)	130
Major	Two years (746 days)	Five years (1,842 days)	88
Major	Five years (1,842 days)	Ten years (3,668 days)	49
Major	Ten years (3,668 days)	30 years (10,973 days)	37
Major	30 years (10,973 days)		15
Non-Major		46 days	230
Non-Major	46 days	Three months (107 days)	230
Non-Major	Three months (107 days)	Six months (198 days)	150
Non-Major	Six months (198 days)	One year (381 days)	110
Non-Major	One year (381 days)	Two years (746 days)	54
Non-Major	Two years (746 days)	Five years (1,842 days)	27
Non-Major	Five years (1,842 days)	Ten years (3,668 days)	15
Non-Major	Ten years (3,668 days)	30 years (10,973 days)	16
Non-Major	30 years (10,973 days)		15

Credit Swaps

Spread group (basis points)	Traded tenor greater than	Traded tenor less than or equal to	50% Notional (in millions)
Less than or equal to 175		Two years (746 days)	320
Less than or equal to 175	Two years (746 days)	Four years (1,477 days)	200
Less than or equal to 175	Four years (1,477 days)	Six years (2,207 days)	110
Less than or equal to 175	Six years (2,207 days)	Eight years and six months (3,120 days)	110
Less than or equal to 175	Eight years and six months (3,120 days)	Twelve years and six months (4,581 days)	130
Less than or equal to 175	Twelve years and six months (4,581 days)		46
Greater than 175 and less than or equal to 350		Two years (746 days)	140
Greater than 175 and less than or equal to 350	Two years (746 days)	Four years (1,477 days)	82
Greater than 175 and less than or equal to 350	Four years (1,477 days)	Six years (2,207 days)	32
Greater than 175 and less than or equal to 350	Six years (2,207 days)	Eight years and six months (3,120 days)	20
Greater than 175 and less than or equal to 350	Eight years and six months (3,120 days)	Twelve years and six months (4,581 days)	26
Greater than 175 and less than or equal to 350	Twelve years and six months (4,581 days)		63
Greater than 350		Two years (746 days)	66
Greater than 350	Two years (746 days)	Four years (1,477 days)	41
Greater than 350	Four years (1,477 days)	Six years (2,207 days)	26
Greater than 350	Six years (2,207 days)	Eight years and six months (3,120 days)	13
Greater than 350	Eight years and six months (3,120 days	Twelve years and six months (4,581 days)	13
Greater than 350	Twelve years and six months (4,581 days)		41

Foreign Exchange Swaps

		Super-major currencies
		EUR (Euro)	GBP (British pound)	JPY (Japanese yen)	USD (U.S. dollar)
Super-major currencies	EUR		6,250,000	6,250,000	18,750,000
	GBP	* 6,250,000		6,250,000	6,250,000
	JPY	* 6,250,000	* 6,250,000		1,875,000,000
	USD	* 18,750,000	* 6,250,000	* 1,875,000,000
Major currencies	AUD	* 6,250,000	0	10,000,000	10,000,000
	CAD	* 6,250,000	0	10,000,000	10,000,000
	CHF	* 6,250,000	* 6,250,000	12,500,000	12,500,000
	DKK	0	0	0	0
	KRW	0	0	0	6,250,000,000
	SEK	* 6,250,000	0	0	100,000,000
	NOK	* 6,250,000	0	0	100,000,000
	NZD	0	0	0	5,000,000
	ZAR	0	0	0	25,000,000
Non-major currencies	BRL	0	0	0	5,000,000
	CZK	200,000,000	0	0	200,000,000
	HUF	1,500,000,000	0	0	1,500,000,000
	ILS	0	0	0	50,000,000
	MXN	0	0	0	50,000,000
	PLN	25,000,000	0	0	25,000,000
	RMB	50,000,000	0	50,000,000	50,000,000
	RUB	0	0	0	125,000,000
	TRY	* 6,250,000	0	0	* 10,000,000

All values that do not have an asterisk are denominated in the currency of the left hand side.

All values that have an asterisk (*) are denominated in the currency indicated on the top of the table.

Other Commodity Swaps

Related futures contract	Initial appropriate minimum block size	Units
AB NIT Basis (ICE)	62,500	MMBtu.
Brent Crude (ICE and NYMEX)	25,000	bbl.
Cheese (CME)	400,000	lbs.
Class III Milk (CME)	NO BLOCKS.
Cocoa (ICE and NYSE LIFFE and NYMEX)	1,000	metric tons.
Coffee (ICE and NYMEX)	3,750,000	lbs.
Copper (COMEX)	625,000	lbs.
Corn (CBOT)	NO BLOCKS.	bushels.
Cotton No. 2 (ICE and NYMEX)	5,000,000	lbs.
Distillers' Dried Grain (CBOT)	1,000	short tons.
Dow Jones-UBS Commodity Index (CBOT)	30,000 times index	dollars.
Ethanol (CBOT)	290,000	gallons.
Feeder Cattle (CME)	NO BLOCKS.
Frost Index (CME)	200,000 times index	euros.
Frozen Concentrated Orange Juice (ICE)	NO BLOCKS.
Gold (COMEX and NYSE Liffe)	2,500	troy oz.
Goldman Sachs Commodity Index (GSCI), GSCI Excess Return Index (CME)	5,000 times index	dollars.
Gulf Coast Sour Crude Oil (NYMEX)	5,000	bbl.
Hard Red Spring Wheat (MGEX)	NO BLOCKS.
Hard Winter Wheat (KCBT)	NO BLOCKS.
Henry Hub Natural Gas (NYMEX)	500,000	MMBtu.
HSC Basis (ICE and NYMEX)	62,500	MMBtu.
Hurricane Index (CME)	20,000 times index	dollars.
Chicago Basis (ICE and NYMEX)	62,500	MMBtu.
Lean Hogs (CME)	NO BLOCKS.
Light Sweet Crude Oil (NYMEX)	50,000	bbl.
Live Cattle (CME)	NO BLOCKS.
Mid-Columbia Day-Ahead Off-Peak Fixed Price (ICE)	625	Mwh.
Mid-Columbia Day-Ahead Peak Fixed Price (ICE)	4,000	Mwh.
New York Harbor RBOB (Blendstock) Gasoline (NYMEX)	1,050,000	gallons.
New York Harbor No. 2 Heating Oil (NYMEX)	1,050,000	gallons.
NWP Rockies Basis (ICE and NYMEX)	62,500	MMBtu.
Oats (CBOT)	NO BLOCKS.
Palladium (NYMEX)	1,000	troy oz.
PG&E Citygate Basis (ICE and NYMEX)	62,500	MMBtu.
PJM Western Hub Real Time Off-Peak Fixed Price (ICE)	3,900	Mwh.
PJM Western Hub Real Time Peak Fixed Price (ICE)	8,000	Mwh.
Platinum (NYMEX)	500	troy oz.
Rainfall Index (CME)	10,000 times index	dollars.
Rough Rice (CBOT)	NO BLOCKS.
Silver (COMEX and NYSE Liffe)	125,000	troy oz.
Snowfall Index (CME)	10,000 times index	dollars.
Socal Border Basis (ICE and NYMEX)	62,500	MMBtu.
Soybean (CBOT)	NO BLOCKS.
Soybean Meal (CBOT)	NO BLOCKS.
Soybean Oil (CBOT)	NO BLOCKS.
SP-15 Day-Ahead Peak Fixed Price (ICE)	4,000	Mwh.
SP-15 Day-Ahead Off-Peak Fixed Price (ICE)	625	Mwh.
Sugar #11 (ICE and NYMEX)	5,000	metric tons.
Sugar #16 (ICE)	NO BLOCKS.
Temperature Index (CME)	400 times index	currency units.
U.S. Dollar Cash Settled Crude Palm Oil (CME)	250	metric tons.
Waha Basis (ICE and NYMEX)	62,500	MMBtu.
Wheat (CBOT)	NO BLOCKS.

[78 FR 32942, May 31, 2013; 78 FR 42436, July 16, 2013]

authority: 7 U.S.C. 2(a), 12a(5) and 24a, as amended by Pub. L. 111-203, 124 Stat. 1376 (2010)

source: 76 FR 1243, Jan. 9, 2012, unless otherwise noted.