He is concerned about the allocation amongst categories- in particular, Real Time Traders.
1	He	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	3	nsubj	3:nsubj	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	3:cop	_
3	concerned	concerned	ADJ	JJ	Degree=Pos	0	root	0:root	_
4	about	about	ADP	IN	_	6	case	6:case	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	_
6	allocation	allocation	NOUN	NN	Number=Sing	3	obl	3:obl:about	_
7	amongst	amongst	ADP	IN	_	8	case	8:case	_
8	categories	category	NOUN	NNS	Number=Plur	6	nmod	6:nmod:amongst	SpaceAfter=No
9	-	-	PUNCT	,	_	6	punct	6:punct	_
10	in	in	ADP	IN	_	11	case	11:case	_
11	particular	particular	ADJ	JJ	Degree=Pos	15	nmod	15:nmod:in	SpaceAfter=No
12	,	,	PUNCT	,	_	15	punct	15:punct	_
13	Real	Real	ADJ	NNP	Degree=Pos	14	amod	14:amod	_
14	Time	Time	PROPN	NNP	Number=Sing	15	compound	15:compound	_
15	Traders	Trader	PROPN	NNPS	Number=Plur	6	appos	6:appos	SpaceAfter=No
16	.	.	PUNCT	.	_	3	punct	3:punct	_
